40, m, minus, 3, n, plus, 2, m, minus, 6, plus, 12, m
Evaluate
54m-3n-6
Factor
3\left(18m-n-2\right)
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42m-3n-6+12m
Combine 40m and 2m to get 42m.
54m-3n-6
Combine 42m and 12m to get 54m.
54m-3n-6
Multiply and combine like terms.
3\left(18m-n-2\right)
Factor out 3.