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m/2-5=-7
We move all terms to the left:
m/2-5-(-7)=0
We add all the numbers together, and all the variables
m/2+2=0
We multiply all the terms by the denominator
m+2*2=0
We add all the numbers together, and all the variables
m+4=0
We move all terms containing m to the left, all other terms to the right
m=-4
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