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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

4x-(3(2x+1))-17=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-3-17=0

We add all the numbers together, and all the variables

-2x-20=0

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

-2x=20

x=20/-2

x=-10

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