SOLUTION: How do you solve this system by using elimination? 2x-5y=-25 3x+4y=20

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Question 1107889: How do you solve this system by using elimination?
2x-5y=-25
3x+4y=20
Found 2 solutions by Alan3354, stanbon:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
How do you solve this system by using elimination?
2x-5y=-25
3x+4y=20
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For elimination, you have to make the coefficients of either x or y match.
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Multiply the 1st eqn by 3, and the 2nd by 2, then subtract.

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
solve this system by using elimination?
2x-5y=-25
3x+4y=20
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6x - 15y = 3(-25)
6x + 8y = 2(20)
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Subtract and solve for "y"::
23y = 40+75
23y = 115
y = 5
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Solve for "x":
2x - 5(5)= -25
2x = 0
x = 0
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Cheers,
Stan H.
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