21-4x=3(2x-1)

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Solution for 21-4x=3(2x-1) equation: 



21-4x=3(2x-1)

We move all terms to the left:

21-4x-(3(2x-1))=0



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

3(2x-1)

We multiply parentheses

6x-3

Back to the equation:

-(6x-3)



We get rid of parentheses

-4x-6x+3+21=0

We add all the numbers together, and all the variables

-10x+24=0

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

-10x=-24

x=-24/-10

x=2+2/5

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