Question

Please help if you could.

f/2 + 9 = 4
-9 -9
f/2 =

Answer 1

`(f)/(2) +9=4`

Subtract 9 from both sides:

`(f)/(2)+9-9=4-9`

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

Multiply both sides by 2:

`2*(f)/(2) =-5*2`

`f=-10`