f=100-(f-5)-(f-5)/2

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Solution for f=100-(f-5)-(f-5)/2 equation: 



f=100-(f-5)-(f-5)/2

We move all terms to the left:

f-(100-(f-5)-(f-5)/2)=0

We multiply all the terms by the denominator


f*2)-(100-(f-5)-(f-5)=0

Wy multiply elements

2f^2-(f-5)-(f-5)=0

We get rid of parentheses

2f^2-f-f+5+5=0

We add all the numbers together, and all the variables

2f^2-2f+10=0

a = 2; b = -2; c = +10;
Δ = b2-4ac
Δ = -22-4·2·10
Δ = -76
Delta is less than zero, so there is no solution for the equation

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