Question 203366
Solve by substitution 
3x + 6y = 18 
-6x + y = 16 
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Solve the 2nd equation for "y":
y = 6x+16
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Substitute into the 1st equation:
3x + 6(6x+16) = 18
3x + 36x + 96 = 18
39x = -78
x = -2
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Since y = 6x+16, y = 6*-2+16 = 4
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Ans: (-2,4)
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Cheers,
Stan H.