3(-1+7x)=-45

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Solution for 3(-1+7x)=-45 equation: 



3(-1+7x)=-45

We move all terms to the left:

3(-1+7x)-(-45)=0

We add all the numbers together, and all the variables

3(7x-1)-(-45)=0

We add all the numbers together, and all the variables

3(7x-1)+45=0

We multiply parentheses

21x-3+45=0

We add all the numbers together, and all the variables

21x+42=0

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

21x=-42

x=-42/21

x=-2

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