X=20x-9+10x+9+90

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Solution for X=20x-9+10x+9+90 equation: 



X=20X-9+10X+9+90

We move all terms to the left:

X-(20X-9+10X+9+90)=0

We add all the numbers together, and all the variables

X-(30X+90)=0

We get rid of parentheses

X-30X-90=0

We add all the numbers together, and all the variables

-29X-90=0

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

-29X=90

X=90/-29

X=-3+3/29

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