x+6=3x-9

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Solution for x+6=3x-9 equation: 



x+6=3x-9

We move all terms to the left:

x+6-(3x-9)=0

We get rid of parentheses

x-3x+9+6=0

We add all the numbers together, and all the variables

-2x+15=0

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

-2x=-15

x=-15/-2

x=7+1/2

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