3(x+3)-1=7x+20

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Solution for 3(x+3)-1=7x+20 equation: 



3(x+3)-1=7x+20

We move all terms to the left:

3(x+3)-1-(7x+20)=0

We multiply parentheses

3x-(7x+20)+9-1=0

We get rid of parentheses

3x-7x-20+9-1=0

We add all the numbers together, and all the variables

-4x-12=0

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

-4x=12

x=12/-4

x=-3

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