7(3x+1)-9=12

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Solution for 7(3x+1)-9=12 equation: 



7(3x+1)-9=12

We move all terms to the left:

7(3x+1)-9-(12)=0

We add all the numbers together, and all the variables

7(3x+1)-21=0

We multiply parentheses

21x+7-21=0

We add all the numbers together, and all the variables

21x-14=0

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

21x=14

x=14/21

x=2/3

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