Using the substitution method, solve for x and y in the following system of equations. Y-4x=16 12x-y=-24

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asked Dec 6, 2016 201k views

2 votes

Using the substitution method, solve for x and y in the following system of equations.

Y-4x=16
12x-y=-24

Mathematics
high-school

Snowape asked

by Snowape

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1 Answer

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$y-4x=16\\ 12x-y=-24\\\\ y=4x+16\\ 12x-y=-24\\\\ 12x-(4x+16)=-24\\ 12x-4x-16=-24\\ 8x=-8\\ x=-1\\\\ y=4\cdot(-1)+16\\ y=-4+16\\ y=12\\\\ \boxed{x=-1,y=12}$

Monogate answered Dec 13, 2016

by Monogate

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