Find the solution to the system of equations by substitution.
-x + y = -2 x - y = 12
A) 5, - 7
B) 2, - 7
C) 2, 5
D) 5, 7

Question

Quizplus · Accepted Answer

Solving the first equation for x gives x = -2 - y. Substituting this into the second equation gives (-2 - y) - y = 12, which simplifies to -2 - 2y = 12. Solving for y gives y = -7. Substituting y = -7 into x = -2 - y gives x = 5. Therefore, the solution is (5, -7).

Find the Solution to the System of Equations by Substitution