7-(1+3x)=9

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Solution for 7-(1+3x)=9 equation: 



7-(1+3x)=9

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

-(3x+1)-2=0

We get rid of parentheses

-3x-1-2=0

We add all the numbers together, and all the variables

-3x-3=0

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

-3x=3

x=3/-3

x=-1

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