4w+5w=81

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Solution for 4w+5w=81 equation: 



4w+5w=81

We move all terms to the left:

4w+5w-(81)=0

We add all the numbers together, and all the variables

9w-81=0

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

9w=81

w=81/9

w=9

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