1/2x+4=21

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Solution for 1/2x+4=21 equation: 



1/2x+4=21

We move all terms to the left:

1/2x+4-(21)=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-17=0

We multiply all the terms by the denominator


-17*2x+1=0

Wy multiply elements

-34x+1=0

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

-34x=-1

x=-1/-34

x=1/34

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