Question

Use addition to solve the linear system of equations.

left
2x+y=3
8x+5y=7
right.

(4,-5)
(-4,-5)
(-4,5)
(4,5)

Answer 1

(4,-5)

Explanation:

Y = 3-2X

8X +5(3-2X) =7

8x + 15 - 10x = 7

-2x = -8

x = 4

y = 3 - 2(4)

y = -5