Question

Solve by substitution.
-4x+y=-23
-2x-4y=-16

Answer 1

x = 6 ; y = 1

Explanation:

y = 4x - 23

-2x - 4(4x - 23) =-16

-2x - 16x + 92 = - 16

-18 x = -92 - 16

-18 x = -108

x = -108/-18

x = 6

y = 4 · 6 -23

y = 24 - 23

y = 1