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5=-4/w+7
We move all terms to the left:
5-(-4/w+7)=0
Domain of the equation: w+7)!=0We get rid of parentheses
w∈R
4/w-7+5=0
We multiply all the terms by the denominator
-7*w+5*w+4=0
We add all the numbers together, and all the variables
-2w+4=0
We move all terms containing w to the left, all other terms to the right
-2w=-4
w=-4/-2
w=+2
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