Gretchen M.

asked • 01/30/19

3x+y=-8 and -2x-y=6 Substitution

Algebra 1 Substitution.

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Paul M. answered • 01/30/19

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This pair of equations would really be easier to solve by elimination, but here is the substitution solution.


from the 1st equation: y = -8-3x

substitute in the 2nd equation

-2x-(-8-3x)=6

x=-2

y=-2

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Paul M.

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I gave ypu the whole solution. After you substitute you will have an equation in 1 unknown which is easy to solve as shown.
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01/31/19

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