21=(x+1/2)+x

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

21=(x+1/2)+x

We move all terms to the left:

21-((x+1/2)+x)=0


Domain of the equation: 2)+x)!=0

x!=0/1

x!=0

x∈R


We add all the numbers together, and all the variables

-((+x+1/2)+x)+21=0

We multiply all the terms by the denominator


-((+x+1+21*2)+x)=0


We calculate terms in parentheses: -((+x+1+21*2)+x), so:

(+x+1+21*2)+x

We add all the numbers together, and all the variables

(x+43)+x

We add all the numbers together, and all the variables

x+(x+43)

We get rid of parentheses

x+x+43

We add all the numbers together, and all the variables

2x+43

Back to the equation:

-(2x+43)


We get rid of parentheses

-2x-43=0

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

-2x=43

x=43/-2

x=-21+1/2