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8-7/2m=(-13)
We move all terms to the left:
8-7/2m-((-13))=0
Domain of the equation: 2m!=0We add all the numbers together, and all the variables
m!=0/2
m!=0
m∈R
-7/2m+21=0
We multiply all the terms by the denominator
21*2m-7=0
Wy multiply elements
42m-7=0
We move all terms containing m to the left, all other terms to the right
42m=7
m=7/42
m=1/6
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