20=4-2(3x+1)

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Solution for 20=4-2(3x+1) equation: 



20=4-2(3x+1)

We move all terms to the left:

20-(4-2(3x+1))=0



We calculate terms in parentheses: -(4-2(3x+1)), so:

4-2(3x+1)

determiningTheFunctionDomain
-2(3x+1)+4

We multiply parentheses

-6x-2+4

We add all the numbers together, and all the variables

-6x+2

Back to the equation:

-(-6x+2)



We get rid of parentheses

6x-2+20=0

We add all the numbers together, and all the variables

6x+18=0

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

6x=-18

x=-18/6

x=-3

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