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Question 526331: Solving systems of linear equations using the substitution method
Problem: 2x-y=6
3x+2y=5
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Solving systems of linear equations using the substitution method
Problems:
2x-y=6
3x+2y=5
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Solve the 1st equation for "y":
y = 2x-6
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Substitute for "y" in the 2nd equation and solve for "x":
3x + 2(2x-6) = 5
3x + 4x-12 = 6
7x = 18
x = 18/7
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Solve for "y":
y = 2x-6
y = 2(18/7)-6
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y = (36/7) - (42/7)
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y = -6/7
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Solution: (18/7 , -6/7)
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Cheers,
Stan H.
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