20=3(2x-3)-1

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Solution for 20=3(2x-3)-1 equation: 



20=3(2x-3)-1

We move all terms to the left:

20-(3(2x-3)-1)=0



We calculate terms in parentheses: -(3(2x-3)-1), so:

3(2x-3)-1

We multiply parentheses

6x-9-1

We add all the numbers together, and all the variables

6x-10

Back to the equation:

-(6x-10)



We get rid of parentheses

-6x+10+20=0

We add all the numbers together, and all the variables

-6x+30=0

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

-6x=-30

x=-30/-6

x=+5

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