w=40-7w

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Solution for w=40-7w equation: 



w=40-7w

We move all terms to the left:

w-(40-7w)=0

We add all the numbers together, and all the variables

w-(-7w+40)=0

We get rid of parentheses

w+7w-40=0

We add all the numbers together, and all the variables

8w-40=0

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

8w=40

w=40/8

w=5

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