-7w+7=-9(w-1)

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Solution for -7w+7=-9(w-1) equation: 



-7w+7=-9(w-1)

We move all terms to the left:

-7w+7-(-9(w-1))=0



We calculate terms in parentheses: -(-9(w-1)), so:

-9(w-1)

We multiply parentheses

-9w+9

Back to the equation:

-(-9w+9)



We get rid of parentheses

-7w+9w-9+7=0

We add all the numbers together, and all the variables

2w-2=0

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

2w=2

w=2/2

w=1

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