w+7=2w-2

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Solution for w+7=2w-2 equation: 



w+7=2w-2

We move all terms to the left:

w+7-(2w-2)=0

We get rid of parentheses

w-2w+2+7=0

We add all the numbers together, and all the variables

-1w+9=0

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

-w=-9

w=-9/-1

w=+9

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