Question

find ,f in these question 18= 752+20f÷44+f

Answer 1

792+18f=752+20f
792-752=20f-18f
40=2f
20=f

Answer 2

The required value of f is 20.

Step-by-step explanation:

The given equation is

18 = (752 + 20f) / (44 + f)

or, 18 (44 + f) = 752 + 20f [ doing cross multiplication ]

or, 792 + 18f = 752 + 20f [ using algebraic operation 'multiplication' on the set of real numbers ]

or, 20f - 18f = 792 - 752 [ taking like in lhs & rhs ]

or, 2f = 40 [ doing algebraic operations ]

or, f = 20 [ multiplying both sides by 1/2 ]

Therefore the required solution is f = 20.