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-5/7x-8/21x+1/3x=-80
We move all terms to the left:
-5/7x-8/21x+1/3x-(-80)=0
Domain of the equation: 7x!=0
x!=0/7
x!=0
x∈R
Domain of the equation: 21x!=0
x!=0/21
x!=0
x∈R
Domain of the equation: 3x!=0We add all the numbers together, and all the variables
x!=0/3
x!=0
x∈R
-5/7x-8/21x+1/3x+80=0
We calculate fractions
We do not support expression: x^3
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