w+7w=72

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Solution for w+7w=72 equation: 



w+7w=72

We move all terms to the left:

w+7w-(72)=0

We add all the numbers together, and all the variables

8w-72=0

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

8w=72

w=72/8

w=9

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