18-x=9x-12

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Solution for 18-x=9x-12 equation: 



18-x=9x-12

We move all terms to the left:

18-x-(9x-12)=0

We add all the numbers together, and all the variables

-1x-(9x-12)+18=0

We get rid of parentheses

-1x-9x+12+18=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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