9(w-4)=81

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Solution for 9(w-4)=81 equation: 



9(w-4)=81

We move all terms to the left:

9(w-4)-(81)=0

We multiply parentheses

9w-36-81=0

We add all the numbers together, and all the variables

9w-117=0

We move all terms containing w to the left, all other terms to the right

9w=117

w=117/9

w=13

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