3x-18=x-30

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Solution for 3x-18=x-30 equation: 



3x-18=x-30

We move all terms to the left:

3x-18-(x-30)=0

We get rid of parentheses

3x-x+30-18=0

We add all the numbers together, and all the variables

2x+12=0

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

2x=-12

x=-12/2

x=-6

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