x-12+4x=-7+9x

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Solution for x-12+4x=-7+9x equation: 



x-12+4x=-7+9x

We move all terms to the left:

x-12+4x-(-7+9x)=0

We add all the numbers together, and all the variables

x+4x-(9x-7)-12=0

We add all the numbers together, and all the variables

5x-(9x-7)-12=0

We get rid of parentheses

5x-9x+7-12=0

We add all the numbers together, and all the variables

-4x-5=0

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

-4x=5

x=5/-4

x=-1+1/4

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