February 21, 2017

Homework Help: algebra

Posted by lovey on Sunday, February 21, 2010 at 12:51am.

Solve the linear equation using any technique you have learned. Name the technique. Check.

3x + 12 = -7x - 28
I know the answer is x = -4
and I know that substitution is the technique that is used, but I can't figure out how to set this up

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