3x+7=12x+4

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Solution for 3x+7=12x+4 equation: 



3x+7=12x+4

We move all terms to the left:

3x+7-(12x+4)=0

We get rid of parentheses

3x-12x-4+7=0

We add all the numbers together, and all the variables

-9x+3=0

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

-9x=-3

x=-3/-9

x=1/3

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