Question

How do you simplify `(2x-10)/(3x - 21)` and what are the restrictions?

Answer 1

`(2x-10)/(3x-21) = (2(x-5))/(3(x-7))`

`=2/3(((x-7)+2)/(x-7))`

`=2/3((x-7)/(x-7)+2/(x-7))`

`=2/3(1+2/(x-7))`

`=2/3+4/(3(x-7))`

The only restriction is `x != 7`