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3w+45=9(w+1)
We move all terms to the left:
3w+45-(9(w+1))=0
We calculate terms in parentheses: -(9(w+1)), so:We get rid of parentheses
9(w+1)
We multiply parentheses
9w+9
Back to the equation:
-(9w+9)
3w-9w-9+45=0
We add all the numbers together, and all the variables
-6w+36=0
We move all terms containing w to the left, all other terms to the right
-6w=-36
w=-36/-6
w=+6
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