X+4y=6 y=-x+3 solve each system of linear equations by substitution

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asked Jul 27, 2017 125k views

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X+4y=6 y=-x+3 solve each system of linear equations by substitution

Mathematics
middle-school

Dbep asked

by Dbep

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Plug in one of the equations for y. x+4(-x+3)=6. Solve for x. Then plug in x into one of the equations to get y. x-4x+12=6. -3x=-6. x=2. y=-2+3=1. X=2 and y=1.

Alan Kinnaman answered Aug 2, 2017

by Alan Kinnaman

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