9-x+(18+7x)=57

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Solution for 9-x+(18+7x)=57 equation: 



9-x+(18+7x)=57

We move all terms to the left:

9-x+(18+7x)-(57)=0

We add all the numbers together, and all the variables

-x+(7x+18)+9-57=0

We add all the numbers together, and all the variables

-1x+(7x+18)-48=0

We get rid of parentheses

-1x+7x+18-48=0

We add all the numbers together, and all the variables

6x-30=0

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

6x=30

x=30/6

x=5

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