7x-(8x+9)=2x-30

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Solution for 7x-(8x+9)=2x-30 equation: 



7x-(8x+9)=2x-30

We move all terms to the left:

7x-(8x+9)-(2x-30)=0

We get rid of parentheses

7x-8x-2x-9+30=0

We add all the numbers together, and all the variables

-3x+21=0

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

-3x=-21

x=-21/-3

x=+7

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