3x-12=4x-19

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Solution for 3x-12=4x-19 equation: 



3x-12=4x-19

We move all terms to the left:

3x-12-(4x-19)=0

We get rid of parentheses

3x-4x+19-12=0

We add all the numbers together, and all the variables

-1x+7=0

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

-x=-7

x=-7/-1

x=+7

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