4x=12*7

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Solution for 4x=12*7 equation: 



4x=12*7

We move all terms to the left:

4x-(12*7)=0

We add all the numbers together, and all the variables

4x-84=0

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

4x=84

x=84/4

x=21

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