1/2x+21=39

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Solution for 1/2x+21=39 equation: 



1/2x+21=39

We move all terms to the left:

1/2x+21-(39)=0



Domain of the equation: 2x!=0

x!=0/2

x!=0

x∈R



We add all the numbers together, and all the variables

1/2x-18=0

We multiply all the terms by the denominator


-18*2x+1=0

Wy multiply elements

-36x+1=0

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

-36x=-1

x=-1/-36

x=1/36

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