9x-20=2x+99

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Solution for 9x-20=2x+99 equation: 



9x-20=2x+99

We move all terms to the left:

9x-20-(2x+99)=0

We get rid of parentheses

9x-2x-99-20=0

We add all the numbers together, and all the variables

7x-119=0

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

7x=119

x=119/7

x=17

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