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July 23, 2016
Posted by **vanessa** on Thursday, November 29, 2012 at 5:57pm.

78= -2(m+3)+ m

- pre algebra -
**PsyDAG**, Friday, November 30, 2012 at 2:48pmGet rid of parenthesis.

78 = -2m - 6 + m

Combine like terms and then add 6 to both sides.

84 = -m

Multiply both sides by -1.