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19 votes
Solve system by elimination
-5x-10y=-20
10x+10y=0

2 Answers

6 votes
x=2 and y= -2 , i hope this helped you...
User Orpheus
by
8.1k points
9 votes

Answer:

(-4,4)

Explanation:

-5x-10y=-20

10x+10y=0

divide both sides by 2

-5x-10y=-20

5x+5y=0

that makes

-5y=-20

divide both sides by -5

y=4

now substitute 4 for y

10x+10 x 4=0

multiply

10x+40=0

subtract

10x=-40

divide

x=-4

User Oleg Fridman
by
9.0k points

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