40=15w-7w

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Solution for 40=15w-7w equation: 



40=15w-7w

We move all terms to the left:

40-(15w-7w)=0

We add all the numbers together, and all the variables

-(+8w)+40=0

We get rid of parentheses

-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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