-77=-7(w-78)

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Solution for -77=-7(w-78) equation: 



-77=-7(w-78)

We move all terms to the left:

-77-(-7(w-78))=0



We calculate terms in parentheses: -(-7(w-78)), so:

-7(w-78)

We multiply parentheses

-7w+546

Back to the equation:

-(-7w+546)



We get rid of parentheses

7w-546-77=0

We add all the numbers together, and all the variables

7w-623=0

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

7w=623

w=623/7

w=89

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