2x-x=21+3(2x+1)

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Solution for 2x-x=21+3(2x+1) equation: 



2x-x=21+3(2x+1)

We move all terms to the left:

2x-x-(21+3(2x+1))=0

We add all the numbers together, and all the variables

x-(21+3(2x+1))=0



We calculate terms in parentheses: -(21+3(2x+1)), so:

21+3(2x+1)

determiningTheFunctionDomain
3(2x+1)+21

We multiply parentheses

6x+3+21

We add all the numbers together, and all the variables

6x+24

Back to the equation:

-(6x+24)



We get rid of parentheses

x-6x-24=0

We add all the numbers together, and all the variables

-5x-24=0

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

-5x=24

x=24/-5

x=-4+4/5

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