3(4x+1)=21

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Solution for 3(4x+1)=21 equation: 



3(4x+1)=21

We move all terms to the left:

3(4x+1)-(21)=0

We multiply parentheses

12x+3-21=0

We add all the numbers together, and all the variables

12x-18=0

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

12x=18

x=18/12

x=1+1/2

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