40-3m=7m

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Solution for 40-3m=7m equation: 



40-3m=7m

We move all terms to the left:

40-3m-(7m)=0

We add all the numbers together, and all the variables

-10m+40=0

We move all terms containing m to the left, all other terms to the right

-10m=-40

m=-40/-10

m=+4

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