-7x+9=2x-90

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Solution for -7x+9=2x-90 equation: 



-7x+9=2x-90

We move all terms to the left:

-7x+9-(2x-90)=0

We get rid of parentheses

-7x-2x+90+9=0

We add all the numbers together, and all the variables

-9x+99=0

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

-9x=-99

x=-99/-9

x=+11

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