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31=7(w+5)-3w
We move all terms to the left:
31-(7(w+5)-3w)=0
We calculate terms in parentheses: -(7(w+5)-3w), so:We get rid of parentheses
7(w+5)-3w
We add all the numbers together, and all the variables
-3w+7(w+5)
We multiply parentheses
-3w+7w+35
We add all the numbers together, and all the variables
4w+35
Back to the equation:
-(4w+35)
-4w-35+31=0
We add all the numbers together, and all the variables
-4w-4=0
We move all terms containing w to the left, all other terms to the right
-4w=4
w=4/-4
w=-1
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