7x-18=x+3

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Solution for 7x-18=x+3 equation: 



7x-18=x+3

We move all terms to the left:

7x-18-(x+3)=0

We get rid of parentheses

7x-x-3-18=0

We add all the numbers together, and all the variables

6x-21=0

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

6x=21

x=21/6

x=3+1/2

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