(3x-7)=20

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Solution for (3x-7)=20 equation: 



(3x-7)=20

We move all terms to the left:

(3x-7)-(20)=0

We get rid of parentheses

3x-7-20=0

We add all the numbers together, and all the variables

3x-27=0

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

3x=27

x=27/3

x=9

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