3(9+7x)=-57

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Solution for 3(9+7x)=-57 equation: 



3(9+7x)=-57

We move all terms to the left:

3(9+7x)-(-57)=0

We add all the numbers together, and all the variables

3(7x+9)-(-57)=0

We add all the numbers together, and all the variables

3(7x+9)+57=0

We multiply parentheses

21x+27+57=0

We add all the numbers together, and all the variables

21x+84=0

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

21x=-84

x=-84/21

x=-4

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