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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.

asked Mar 1, 2014 in ALGEBRA 2 by johnkelly Apprentice

1 Answer

0 votes

Substitution method:

image      ---------->( 1 )

image    ---------->( 2 )

Substitute the value of image in (2).

image

image

image

Add 28 to each side.

image

image

Divide each side by 3.

image

image

Substitute the value  image  in (1).

image

image

image.

Solution image and  image.

answered Mar 1, 2014 by dozey Mentor

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