Question

698+20f/40+f=18 find f​

Answer 1

Step-by-step explanation:

hope it's correct........

Answer 2

Answer:

698 + 20f/ 40 + f = 18

⇒ 698 + 20f = 720 + 18f

⇒ 698 - 720 = 18f - 20f

⇒ -22 = -2f

⇒  -11 = -f

⇒ f = 11

Hence, f = -11.