3(1-7x)-1=-145

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Solution for 3(1-7x)-1=-145 equation: 



3(1-7x)-1=-145

We move all terms to the left:

3(1-7x)-1-(-145)=0

We add all the numbers together, and all the variables

3(-7x+1)-1-(-145)=0

We add all the numbers together, and all the variables

3(-7x+1)+144=0

We multiply parentheses

-21x+3+144=0

We add all the numbers together, and all the variables

-21x+147=0

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

-21x=-147

x=-147/-21

x=+7

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