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solve the system of equation X=y-7 and 4x-y=0

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X=y-7 and 4x-y=0.

system-of-equations
solving-equations
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elimination-method

asked Mar 1, 2014 in ALGEBRA 2 by johnkelly Apprentice

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1 Answer

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Substitution method:

---------->( 1 )

---------->( 2 )

Substitute the value of in (2).

Add 28 to each side.

Divide each side by 3.

Substitute the value in (1).

.

Solution and .

answered Mar 1, 2014 by dozey Mentor

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