3(x-20)=390

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Solution for 3(x-20)=390 equation: 



3(x-20)=390

We move all terms to the left:

3(x-20)-(390)=0

We multiply parentheses

3x-60-390=0

We add all the numbers together, and all the variables

3x-450=0

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

3x=450

x=450/3

x=150

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