x+3(2x-3)=12

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Solution for x+3(2x-3)=12 equation: 



x+3(2x-3)=12

We move all terms to the left:

x+3(2x-3)-(12)=0

We multiply parentheses

x+6x-9-12=0

We add all the numbers together, and all the variables

7x-21=0

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

7x=21

x=21/7

x=3

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