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x+1/3x+1/12x=51
We move all terms to the left:
x+1/3x+1/12x-(51)=0
Domain of the equation: 3x!=0
x!=0/3
x!=0
x∈R
Domain of the equation: 12x!=0We calculate fractions
x!=0/12
x!=0
x∈R
x+12x/36x^2+3x/36x^2-51=0
We multiply all the terms by the denominator
x*36x^2+12x+3x-51*36x^2=0
We add all the numbers together, and all the variables
15x+x*36x^2-51*36x^2=0
Wy multiply elements
36x^3-1836x^2+15x=0
We do not support expression: x^3
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