4x+21=5(2x+1)+1

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Solution for 4x+21=5(2x+1)+1 equation: 



4x+21=5(2x+1)+1

We move all terms to the left:

4x+21-(5(2x+1)+1)=0



We calculate terms in parentheses: -(5(2x+1)+1), so:

5(2x+1)+1

We multiply parentheses

10x+5+1

We add all the numbers together, and all the variables

10x+6

Back to the equation:

-(10x+6)



We get rid of parentheses

4x-10x-6+21=0

We add all the numbers together, and all the variables

-6x+15=0

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

-6x=-15

x=-15/-6

x=2+1/2

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