-3(-6x-3)=99

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Solution for -3(-6x-3)=99 equation: 



-3(-6x-3)=99

We move all terms to the left:

-3(-6x-3)-(99)=0

We multiply parentheses

18x+9-99=0

We add all the numbers together, and all the variables

18x-90=0

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

18x=90

x=90/18

x=5

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