https://www.khanacademy.org/math/precalculus/x9e81a4f98389efdf:matrices/x9e81a4f98389efdf:adding-and-subtracting-matrices/v/matrix-addition-and-subtraction-1 2026-02-27T05:20:50.375487085Z Adding matrices (with -1 scalar also) Sal defines what it means to add or subtract matrices. He shows a few examples and discusses some important properties of matrix addition and subtraction. Sal Khan video https://cdn.kastatic.org/googleusercontent/zmei0Tqh5SP7PF4-vY6o0abFVM_Rimpu8Tyr7nBA8TsnSXOHottPTvfY5yj1PiqgAt5ePmVqatmI2Nvzv9d-I7Ve Adding matrices (with -1 scalar also) Sal defines what it means to add or subtract matrices. He shows a few examples and discusses some important properties of matrix addition and subtraction. https://cdn.kastatic.org/ka-youtube-converted/WR9qCSXJlyY.mp4/WR9qCSXJlyY.mp4 335 Adding and subtracting matrices https://www.khanacademy.org/math/precalculus/x9e81a4f98389efdf:matrices/x9e81a4f98389efdf:adding-and-subtracting-matrices/a/adding-and-subtracting-matrices 2021-04-29T08:03:43Z Adding & subtracting matrices Learn how to find the result of matrix addition and subtraction operations. article https://www.khanacademy.org/math/precalculus/x9e81a4f98389efdf:matrices/x9e81a4f98389efdf:adding-and-subtracting-matrices/e/matrix_addition_and_subtraction 2026-03-24T23:41:07.080866137Z Add & subtract matrices Practice your understanding of the process of adding or subtracting two matrices. Tomer Gal exercise https://www.khanacademy.org/math/algebra-home/alg-matrices/alg-adding-and-subtracting-matrices/e/solve-matrix-equations-add-sub 2026-04-08T00:16:02.937952483Z Matrix equations: addition & subtraction Solve equations where the unknown is a matrix, by using matrix addition and subtraction. Tomer Gal exercise