3x-4=7x=12

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



3x-4=7x=12

We move all terms to the left:

3x-4-(7x)=0

We add all the numbers together, and all the variables

-4x-4=0

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

-4x=4

x=4/-4

x=-1

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