-9+4x=-7x+90

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Solution for -9+4x=-7x+90 equation: 



-9+4x=-7x+90

We move all terms to the left:

-9+4x-(-7x+90)=0

We get rid of parentheses

4x+7x-90-9=0

We add all the numbers together, and all the variables

11x-99=0

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

11x=99

x=99/11

x=9

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