X+(x+6)=(x+8)+21

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Solution for X+(x+6)=(x+8)+21 equation: 



X+(X+6)=(X+8)+21

We move all terms to the left:

X+(X+6)-((X+8)+21)=0

We get rid of parentheses

X+X-((X+8)+21)+6=0



We calculate terms in parentheses: -((X+8)+21), so:

(X+8)+21

We get rid of parentheses

X+8+21

We add all the numbers together, and all the variables

X+29

Back to the equation:

-(X+29)



We add all the numbers together, and all the variables

2X-(X+29)+6=0

We get rid of parentheses

2X-X-29+6=0

We add all the numbers together, and all the variables

X-23=0

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

X=23

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