Question

Solve using elimination.

8x + 7y = 9
8x + 10y = –18

please help i am in desperate need of math help

Answer 1

x=9, y=-9

Explanation:

pic attached with step by steps

Answer 2

8x + 7y = 9
8x + 10y = -18
Subtract.
-3y = 27
Divide.
y = -9
Plug y (-9) back in:
8x - 63 = 9
Solve.
8x = 72
Divide.
x = 9

Answer: (9, -9)
:)