7(9+3x)=-105

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Solution for 7(9+3x)=-105 equation: 



7(9+3x)=-105

We move all terms to the left:

7(9+3x)-(-105)=0

We add all the numbers together, and all the variables

7(3x+9)-(-105)=0

We add all the numbers together, and all the variables

7(3x+9)+105=0

We multiply parentheses

21x+63+105=0

We add all the numbers together, and all the variables

21x+168=0

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

21x=-168

x=-168/21

x=-8

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