X+1/2x+1/4x=21

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



X+1/2X+1/4X=21

We move all terms to the left:

X+1/2X+1/4X-(21)=0



Domain of the equation: 2X!=0

X!=0/2

X!=0

X∈R





Domain of the equation: 4X!=0

X!=0/4

X!=0

X∈R



We calculate fractions


X+4X/8X^2+2X/8X^2-21=0

We multiply all the terms by the denominator


X*8X^2+4X+2X-21*8X^2=0

We add all the numbers together, and all the variables

6X+X*8X^2-21*8X^2=0

Wy multiply elements

8X^3-168X^2+6X=0

We do not support eXpression: X^3

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