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1/3x+1/4x+x=57
We move all terms to the left:
1/3x+1/4x+x-(57)=0
Domain of the equation: 3x!=0
x!=0/3
x!=0
x∈R
Domain of the equation: 4x!=0We add all the numbers together, and all the variables
x!=0/4
x!=0
x∈R
x+1/3x+1/4x-57=0
We calculate fractions
x+4x/12x^2+3x/12x^2-57=0
We multiply all the terms by the denominator
x*12x^2+4x+3x-57*12x^2=0
We add all the numbers together, and all the variables
7x+x*12x^2-57*12x^2=0
Wy multiply elements
12x^3-684x^2+7x=0
We do not support expression: x^3
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