2x+9=12x-11

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Solution for 2x+9=12x-11 equation: 



2x+9=12x-11

We move all terms to the left:

2x+9-(12x-11)=0

We get rid of parentheses

2x-12x+11+9=0

We add all the numbers together, and all the variables

-10x+20=0

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

-10x=-20

x=-20/-10

x=+2

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