7x+3(2x+6)=-99

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Solution for 7x+3(2x+6)=-99 equation: 



7x+3(2x+6)=-99

We move all terms to the left:

7x+3(2x+6)-(-99)=0

We add all the numbers together, and all the variables

7x+3(2x+6)+99=0

We multiply parentheses

7x+6x+18+99=0

We add all the numbers together, and all the variables

13x+117=0

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

13x=-117

x=-117/13

x=-9

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