Question

Solve the system of equations by substitution. Show the steps that correspond with the substitution method.

y = -2x - 5

5x - 2y = 19

Answer 1

5x - 2(-2x - 5) = 19

5x + 4x +10 = 19

9x + 10 = 19

9x = 9

x = 1

y = -2(1) - 5

y = -2 - 5

y = -7