Question

9. Subtract r+9/r-4 from 3r+1/r-4
show your solution

Answer 1

`3r + (1)/(r) - 4 - (r + (9)/(r) - 4)`

`3r + (1)/(r) - 4 - r - (9)/(r) + 4`

`(3r - r) + ( (1)/(r) - (9)/(r) ) + ( - 4 + 4)`

`2r - (8)/(r)`