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8th grade (Illustrative Mathematics)

Unit 4: Lesson 12

Lesson 14: Solving more systems
Math
8th grade (Illustrative Mathematics)
Unit 4: Linear equations and linear systems
Lesson 14: Solving more systems
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Systems of equations with substitution

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Problem

Solve the system of equations.
5x−7y=58y=−x+2\begin{aligned} &5x-7y= 58 \\\\ &y=-x+2 \end{aligned}
x, equals
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, start text, p, i, end text or 2, slash, 3, space, start text, p, i, end text
y, equals
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, start text, p, i, end text or 2, slash, 3, space, start text, p, i, end text
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