-9(w-10)=-3(7w-7)+9

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Solution for -9(w-10)=-3(7w-7)+9 equation: 



-9(w-10)=-3(7w-7)+9

We move all terms to the left:

-9(w-10)-(-3(7w-7)+9)=0

We multiply parentheses

-9w-(-3(7w-7)+9)+90=0



We calculate terms in parentheses: -(-3(7w-7)+9), so:

-3(7w-7)+9

We multiply parentheses

-21w+21+9

We add all the numbers together, and all the variables

-21w+30

Back to the equation:

-(-21w+30)



We get rid of parentheses

-9w+21w-30+90=0

We add all the numbers together, and all the variables

12w+60=0

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

12w=-60

w=-60/12

w=-5

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