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-3+m/4=7
We move all terms to the left:
-3+m/4-(7)=0
We add all the numbers together, and all the variables
m/4-10=0
We multiply all the terms by the denominator
m-10*4=0
We add all the numbers together, and all the variables
m-40=0
We move all terms containing m to the left, all other terms to the right
m=40
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