-7w+5(w-7)=-21

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Solution for -7w+5(w-7)=-21 equation: 



-7w+5(w-7)=-21

We move all terms to the left:

-7w+5(w-7)-(-21)=0

We add all the numbers together, and all the variables

-7w+5(w-7)+21=0

We multiply parentheses

-7w+5w-35+21=0

We add all the numbers together, and all the variables

-2w-14=0

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

-2w=14

w=14/-2

w=-7

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