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What is the answer? x+y=15 -2x+5y=-2​
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2 votes
What is the answer?
x+y=15
-2x+5y=-2​

User Zaki Mohammed
by
4.9k points

1 Answer

5 votes
multiply the first equation by 2

2x + 2y =30

now we’ll add the second equation to the first equation

2x + 2y =30
-2x+5y= -2

7y=28

divide by 7

y=4

now plug y back into the first equation

x + 4 = 15

subtract 4

x=11
User Xeofus
by
4.6k points
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