12x-1=20-3x

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Solution for 12x-1=20-3x equation: 



12x-1=20-3x

We move all terms to the left:

12x-1-(20-3x)=0

We add all the numbers together, and all the variables

12x-(-3x+20)-1=0

We get rid of parentheses

12x+3x-20-1=0

We add all the numbers together, and all the variables

15x-21=0

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

15x=21

x=21/15

x=1+2/5

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