Michael W. answered • 01/08/20

SW Engineer w/ MS CompSci & BS Math

add the two rows together.

x+y=8

2x-y=1

3x+0=9

3x=9

then solve for x

then substitute x's value in for x in one of the original equations, then solve for y.

Michael W. answered • 01/08/20

SW Engineer w/ MS CompSci & BS Math

add the two rows together.

x+y=8

2x-y=1

3x+0=9

3x=9

then solve for x

then substitute x's value in for x in one of the original equations, then solve for y.

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