x-128=77-9x

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Solution for x-128=77-9x equation: 



x-128=77-9x

We move all terms to the left:

x-128-(77-9x)=0

We add all the numbers together, and all the variables

x-(-9x+77)-128=0

We get rid of parentheses

x+9x-77-128=0

We add all the numbers together, and all the variables

10x-205=0

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

10x=205

x=205/10

x=20+1/2

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