SOLUTION: How do I solve by elimination: X-4Y=-23
2X+3Y=9
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Question 107416: How do I solve by elimination: X-4Y=-23
2X+3Y=9
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
How do I solve by elimination:
1st: X-4Y=-23
2nd: 2X+3Y=9
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Multiply 1st by 2 to get:
3rd: 2X-8Y=-46
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Subtract 2nd from 3rd to solve for "Y":
-11Y = -55
Y = 5
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Substitute into X-4Y=-23 to solve for X:
X-4*5 = -23
X = -3
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Checking answer in 2X+3Y=9
2*-3+3*5 = 9
-6+15=9
9=9
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Cheers,
Stan H.
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