-x+3=3x+9

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Solution for -x+3=3x+9 equation: 



-x+3=3x+9

We move all terms to the left:

-x+3-(3x+9)=0

We add all the numbers together, and all the variables

-1x-(3x+9)+3=0

We get rid of parentheses

-1x-3x-9+3=0

We add all the numbers together, and all the variables

-4x-6=0

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

-4x=6

x=6/-4

x=-1+1/2

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