Solve for m
m=14
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6m-168+6m=0
Add 6m to both sides.
12m-168=0
Combine 6m and 6m to get 12m.
12m=168
Add 168 to both sides. Anything plus zero gives itself.
m=\frac{168}{12}
Divide both sides by 12.
m=14
Divide 168 by 12 to get 14.
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