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42/m=4
We move all terms to the left:
42/m-(4)=0
Domain of the equation: m!=0We multiply all the terms by the denominator
m∈R
-4*m+42=0
We add all the numbers together, and all the variables
-4m+42=0
We move all terms containing m to the left, all other terms to the right
-4m=-42
m=-42/-4
m=10+1/2
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