21-6x=5-2(8-3x)

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Solution for 21-6x=5-2(8-3x) equation: 



21-6x=5-2(8-3x)

We move all terms to the left:

21-6x-(5-2(8-3x))=0

We add all the numbers together, and all the variables

-6x-(5-2(-3x+8))+21=0



We calculate terms in parentheses: -(5-2(-3x+8)), so:

5-2(-3x+8)

determiningTheFunctionDomain
-2(-3x+8)+5

We multiply parentheses

6x-16+5

We add all the numbers together, and all the variables

6x-11

Back to the equation:

-(6x-11)



We get rid of parentheses

-6x-6x+11+21=0

We add all the numbers together, and all the variables

-12x+32=0

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

-12x=-32

x=-32/-12

x=2+2/3

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