Question

How do you solve `(4-f)/5=(f+1)/3`?

Answer 1

`f = 7/8`

Explanation:

This problem is simply a matter of rearranging terms and is solved as such:
`(4-f)/5=(f+1)/3`
`3(4-f) = 5(f+1)`
`12-3f = 5f + 5`
`12 - 5 = 5f + 3f`
`7 = 8f`
`f = 7/8`