https://www.khanacademy.org/math/class-9-tg/x06d55bfa213a79fd:linear-equations-in-two-variables/x06d55bfa213a79fd:solution-of-a-linear-equation-in-two-variables/v/worked-example-solutions-to-2-variable-equations-indian-accent 2025-06-03T19:25:43.416794683Z Worked example: solutions to 2-variable equations How do you check if an ordered pair is a solution to a given equation? You need to plug in the numbers and see what equality results. Watch this video to see a worked example. Kalakrit (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Worked example: solutions to 2-variable equations How do you check if an ordered pair is a solution to a given equation? You need to plug in the numbers and see what equality results. Watch this video to see a worked example. https://cdn.kastatic.org/ka-youtube-converted/as1W1_Bz63Y.mp4/as1W1_Bz63Y.mp4 147 Linear equations in two variables https://www.khanacademy.org/math/class-9-tg/x06d55bfa213a79fd:linear-equations-in-two-variables/x06d55bfa213a79fd:solution-of-a-linear-equation-in-two-variables/v/completing-solutions-to-2-variable-equations-indian-accent 2025-06-03T19:25:43.416794683Z Completing solutions to 2-variable equations Given a 2-variable equation and the x or y values of a solution, lets finds the value of the other variable in the solution. Kalakrit (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Completing solutions to 2-variable equations Given a 2-variable equation and the x or y values of a solution, lets finds the value of the other variable in the solution. https://cdn.kastatic.org/ka-youtube-converted/k_HzTZtnsvk.mp4/k_HzTZtnsvk.mp4 431 Linear equations in two variables https://www.khanacademy.org/math/board-preparation-maharashtra-math-10/x20d33f0422cd733e:week-1-board-prep-maharashtra/x20d33f0422cd733e:linear-equations-in-two-variables-board-prep-maharashtra-10/v/systems-of-equations-with-substitution-3x-4y-2-y2x-5-indian-accent 2025-06-03T19:25:43.416794683Z Systems of equations with substitution: -3x-4y=-2 & y=2x-5 Learn to solve the system of equations -3x - 4y = -2 and y = 2x - 5 using substitution. Kalakrit (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Systems of equations with substitution: -3x-4y=-2 & y=2x-5 Learn to solve the system of equations -3x - 4y = -2 and y = 2x - 5 using substitution. https://cdn.kastatic.org/ka-youtube-converted/PBVTIfvfgP4.mp4/PBVTIfvfgP4.mp4 262 Linear equations in two variables https://www.khanacademy.org/math/revision-term-1-mh-math-class-10/x041ca11815640a3a:week-1/x041ca11815640a3a:linear-equations-in-two-variables/v/systems-of-equations-with-elimination-and-manipulation-indian-accent 2025-06-03T19:25:43.416794683Z Systems of equations with elimination (and manipulation) In some cases, we need to slightly manipulate a system of equations before we can solve it using the elimination method. See how it's done in this video. Kalakrit (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Systems of equations with elimination (and manipulation) In some cases, we need to slightly manipulate a system of equations before we can solve it using the elimination method. See how it's done in this video. https://cdn.kastatic.org/ka-youtube-converted/t_YdDkDkeiU.mp4/t_YdDkDkeiU.mp4 721 Linear equations in two variables https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:systems-of-equations/x2f8bb11595b61c86:systems-of-equations-word-problems/v/ex-3-age-word-problem 2021-02-07T17:14:00Z Age word problem: Ben & William Sal solves the following age word problem: William is 4 times as old as Ben. 12 years ago, William was 7 times as old as Ben. How old is Ben now? Sal Khan video https://cdn.kastatic.org/googleusercontent/MYxSSU8heK6Iaq5yk3WIQnTwkQH8-mgmfDvEfccpVxxi64tlo3JlSbEBenA7tRVzuhBr8aJqtOH3V3S4MGjUUJQJ Age word problem: Ben & William Sal solves the following age word problem: William is 4 times as old as Ben. 12 years ago, William was 7 times as old as Ben. How old is Ben now? https://cdn.kastatic.org/ka-youtube-converted/RGbA2IyJILY.mp4/RGbA2IyJILY.mp4 388 Linear equations in two variables https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:systems-of-equations/x2f8bb11595b61c86:systems-of-equations-word-problems/v/system-of-equations-distances-word-problem 2022-10-06T11:39:29.972393653Z System of equations word problem: walk & ride Systems of equations can be used to solve many real-world problems. In this video, we solve a problem about distances walking and riding bus to school. video https://cdn.kastatic.org/ka_thumbnails_cache/297bb556-9656-47e8-814c-cb10e3239ad5_1280_720_base.png System of equations word problem: walk & ride Systems of equations can be used to solve many real-world problems. In this video, we solve a problem about distances walking and riding bus to school. https://cdn.kastatic.org/ka-youtube-converted/Q0tTfe2lKIc.mp4/Q0tTfe2lKIc.mp4 420 Linear equations in two variables https://www.khanacademy.org/math/revision-term-1-mh-math-class-10/x041ca11815640a3a:week-1/x041ca11815640a3a:linear-equations-in-two-variables/v/systems-of-equations-with-elimination-tv-dvd-indian-accent 2025-06-03T19:25:43.416794683Z Systems of equations with elimination: TV & DVD Sal solves a word problem about the weights of TVs and DVDs by creating a system of equations and solving it. Skyloom (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Systems of equations with elimination: TV & DVD Sal solves a word problem about the weights of TVs and DVDs by creating a system of equations and solving it. https://cdn.kastatic.org/ka-youtube-converted/c1N8am2hbQU.mp4/c1N8am2hbQU.mp4 346 Linear equations in two variables https://www.khanacademy.org/math/revision-mh-math-class-9/x6ee29cf0de77cbed:week-2/x6ee29cf0de77cbed:linear-equations-in-two-variables/e/revision-linear-equations-in-two-variables-mh-class-9 2026-02-03T09:22:16.808346173Z Revision linear equations in two variables MH class 9 . Khan Academy exercise