12x+9=8x-11

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Solution for 12x+9=8x-11 equation: 



12x+9=8x-11

We move all terms to the left:

12x+9-(8x-11)=0

We get rid of parentheses

12x-8x+11+9=0

We add all the numbers together, and all the variables

4x+20=0

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

4x=-20

x=-20/4

x=-5

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