Question 303546: solve the systm of linear equation by substitution
3x+2y=6
y=2x+10
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! solve the systm of linear equation by substitution
3x+2y=6
y=2x+10
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Substitute for "y" and solve for "x":
3x + 2(2x+10) = 6
3x + 4x + 20 = 6
7x = -14
x = -2
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Substitute into y = 2x+10 to solve for "y":
y = 2(-2)+10
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y = 6
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Solution: (-2,6)
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Cheers,
Stan H.
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