x+18=4x-3

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Solution for x+18=4x-3 equation: 



x+18=4x-3

We move all terms to the left:

x+18-(4x-3)=0

We get rid of parentheses

x-4x+3+18=0

We add all the numbers together, and all the variables

-3x+21=0

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

-3x=-21

x=-21/-3

x=+7

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