9x+3=11x-21

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Solution for 9x+3=11x-21 equation: 



9x+3=11x-21

We move all terms to the left:

9x+3-(11x-21)=0

We get rid of parentheses

9x-11x+21+3=0

We add all the numbers together, and all the variables

-2x+24=0

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

-2x=-24

x=-24/-2

x=+12

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