x-9=4x+18

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Solution for x-9=4x+18 equation: 



x-9=4x+18

We move all terms to the left:

x-9-(4x+18)=0

We get rid of parentheses

x-4x-18-9=0

We add all the numbers together, and all the variables

-3x-27=0

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

-3x=27

x=27/-3

x=-9

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