6x+18=3x-12,

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Solution for 6x+18=3x-12, equation: 



6x+18=3x-12.

We move all terms to the left:

6x+18-(3x-12.)=0

We add all the numbers together, and all the variables

6x-(3x-12)+18=0

We get rid of parentheses

6x-3x+12+18=0

We add all the numbers together, and all the variables

3x+30=0

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

3x=-30

x=-30/3

x=-10

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