12-4x=9x-27

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Solution for 12-4x=9x-27 equation: 



12-4x=9x-27

We move all terms to the left:

12-4x-(9x-27)=0

We get rid of parentheses

-4x-9x+27+12=0

We add all the numbers together, and all the variables

-13x+39=0

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

-13x=-39

x=-39/-13

x=+3

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