# Solve for y in #2x + y = 1# and #x - 2y =-7#?

##### 1 Answer

Apr 7, 2015

If

then

We can add the second equation to this to eliminate the

Substituting

which simplifies as

Apr 7, 2015

If

then

We can add the second equation to this to eliminate the

Substituting

which simplifies as

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