7x-11=12x+9

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Solution for 7x-11=12x+9 equation: 



7x-11=12x+9

We move all terms to the left:

7x-11-(12x+9)=0

We get rid of parentheses

7x-12x-9-11=0

We add all the numbers together, and all the variables

-5x-20=0

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

-5x=20

x=20/-5

x=-4

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