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-7/8x-9/40x+1/5x=-72x=
We move all terms to the left:
-7/8x-9/40x+1/5x-(-72x)=0
Domain of the equation: 8x!=0
x!=0/8
x!=0
x∈R
Domain of the equation: 40x!=0
x!=0/40
x!=0
x∈R
Domain of the equation: 5x!=0We get rid of parentheses
x!=0/5
x!=0
x∈R
-7/8x-9/40x+1/5x+72x=0
We calculate fractions
We do not support expression: x^3
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