3=3(2x+1)+x

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



3=3(2x+1)+x

We move all terms to the left:

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



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

3(2x+1)+x

We add all the numbers together, and all the variables

x+3(2x+1)

We multiply parentheses

x+6x+3

We add all the numbers together, and all the variables

7x+3

Back to the equation:

-(7x+3)



We get rid of parentheses

-7x-3+3=0

We add all the numbers together, and all the variables

-7x=0

x=0/-7

x=0

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