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(f-32)(5/9)=-20
We move all terms to the left:
(f-32)(5/9)-(-20)=0
We add all the numbers together, and all the variables
(f-32)(+5/9)-(-20)=0
We add all the numbers together, and all the variables
(f-32)(+5/9)+20=0
We multiply parentheses ..
(+5f^2-32*5/9)+20=0
We multiply all the terms by the denominator
(+5f^2-32*5+20*9)=0
We get rid of parentheses
5f^2-32*5+20*9=0
We add all the numbers together, and all the variables
5f^2+20=0
a = 5; b = 0; c = +20;
Δ = b2-4ac
Δ = 02-4·5·20
Δ = -400
Delta is less than zero, so there is no solution for the equation
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