2(3x+1)=21

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Solution for 2(3x+1)=21 equation: 



2(3x+1)=21

We move all terms to the left:

2(3x+1)-(21)=0

We multiply parentheses

6x+2-21=0

We add all the numbers together, and all the variables

6x-19=0

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

6x=19

x=19/6

x=3+1/6

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