Use the substitution method to solve the system.
-x - 7y = 36 5x - 8y = 45
A)(1, -5)
B)(-1, -4)
C)(0, -4)
D)No solution

Question

Quizplus · Accepted Answer

Solving the first equation for x gives x = 7y + 36. Substituting this into the second equation gives 5(7y + 36) - 8y = 45, which simplifies to 35y + 180 - 8y = 45, or 27y = -135, so y = -5. Substituting y = -5 into x = 7y + 36 gives x = 1. Therefore, the solution is (1, -5).

Use the Substitution Method to Solve the System