18+4x=2x-12

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Solution for 18+4x=2x-12 equation: 



18+4x=2x-12

We move all terms to the left:

18+4x-(2x-12)=0

We get rid of parentheses

4x-2x+12+18=0

We add all the numbers together, and all the variables

2x+30=0

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

2x=-30

x=-30/2

x=-15

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