128=-7x+9

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Solution for 128=-7x+9 equation: 



128=-7x+9

We move all terms to the left:

128-(-7x+9)=0

We get rid of parentheses

7x-9+128=0

We add all the numbers together, and all the variables

7x+119=0

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

7x=-119

x=-119/7

x=-17

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