13x-12=3x+18

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Solution for 13x-12=3x+18 equation: 



13x-12=3x+18

We move all terms to the left:

13x-12-(3x+18)=0

We get rid of parentheses

13x-3x-18-12=0

We add all the numbers together, and all the variables

10x-30=0

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

10x=30

x=30/10

x=3

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