12=20-18x

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Solution for 12=20-18x equation: 



12=20-18x

We move all terms to the left:

12-(20-18x)=0

We add all the numbers together, and all the variables

-(-18x+20)+12=0

We get rid of parentheses

18x-20+12=0

We add all the numbers together, and all the variables

18x-8=0

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

18x=8

x=8/18

x=4/9

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