Solve using elimination. -x – 5y = 16 2x + 5y = -7

asked Sep 17, 2018 186k views

3 votes

Solve using elimination.

-x – 5y = 16
2x + 5y = -7

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3 votes

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

x=9 substitute

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

25/-5 = -5

y= -5

Rayashi answered Sep 18, 2018

6.4k points

2 votes

-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!

Jewel Rana answered Sep 21, 2018

5.8k points

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