-12=-9-x/3

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Solution for -12=-9-x/3 equation: 



-12=-9-x/3

We move all terms to the left:

-12-(-9-x/3)=0

We add all the numbers together, and all the variables

-(-x/3-9)-12=0

We get rid of parentheses

x/3+9-12=0

We multiply all the terms by the denominator


x+9*3-12*3=0

We add all the numbers together, and all the variables

x-9=0

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

x=9

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