Question

How do you solve `\frac { u - 1} { u - 3} = \frac { u + 4} { u + 3} - 1`?

Answer 1

`u = 0 or u = -1`

Explanation:

`frac{x - 1}{x - 3} = frac{x + 4 - x - 3}{x + 3}`

`frac{x - 1}{x - 3} = frac{1}{x + 3}`

`x^2 + 2x - 3 = x - 3`

`x^2 + x = 0`