(9x-77)=112

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Solution for (9x-77)=112 equation: 



(9x-77)=112

We move all terms to the left:

(9x-77)-(112)=0

We get rid of parentheses

9x-77-112=0

We add all the numbers together, and all the variables

9x-189=0

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

9x=189

x=189/9

x=21

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