3(e-4)=9

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Solution for 3(e-4)=9 equation: 



3(e-4)=9

We move all terms to the left:

3(e-4)-(9)=0

We multiply parentheses

3e-12-9=0

We add all the numbers together, and all the variables

3e-21=0

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

3e=21

e=21/3

e=7

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