3x+1=12x-7

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



3x+1=12x-7

We move all terms to the left:

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

We get rid of parentheses

3x-12x+7+1=0

We add all the numbers together, and all the variables

-9x+8=0

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

-9x=-8

x=-8/-9

x=8/9

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