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-2x+5y=7 2x-5y=-7 What is the solution?

-2x+5y=7 2x-5y=-7 What is the solution?
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15 votes
-2x+5y=7
2x-5y=-7 What is the solution?

User Serdar
by
7.6k points

1 Answer

9 votes
-2x+5y=7
add 2x to both sides:
5y=2x+7
Divide everything by 5 to get y by itself:
y = 2/5x+7/5

————————————
2x-5y=-7
Subtract 2x from both sides
-5y=-2x-7
Divid by -5 to get y by itself
y=2/5x+7/5
User Santillanix
by
8.9k points
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