x+18=10x-90

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Solution for x+18=10x-90 equation: 



x+18=10x-90

We move all terms to the left:

x+18-(10x-90)=0

We get rid of parentheses

x-10x+90+18=0

We add all the numbers together, and all the variables

-9x+108=0

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

-9x=-108

x=-108/-9

x=+12

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