Question

What is the solution of the system equations y =-3x +8 y = -5x -2

Answer 1

x = -5

y = 23

Explanation:

y = -3x + 8

3x + y = 8

y = -5x -2

5x + y = -2

Elimination

3x + y = 8

5x + y = -2

_________--

-2x = 10

x = 10/-2

x = -5

Subsitution

3x + y = 8

3(-5) + y = 8

-15 + y = 8

y = 8 + 15

y = 23