Question

Solve using elimination.

-x – 5y = 16
2x + 5y = -7

Answer 1

-x - 5y = 16
2x + 5y = -7
(add)
x = 9

(2 × 9) + 5y = -7
18 + 5y = -7
- 18
5y = -25
÷ 5
y = -5

I hope this helps!

Answer 2

-x - 5y = 16
2x + 5y = -7
-----------------------
1x =9

x=9 substitute

-9 - 5y =16
+9        =9
--------------
      -5y =25

25/-5 = -5

y= -5