Multiply each term by x(x − 1).
Simplify.
Solve.

$\frac{x(x-1)(x)}{x-1}-\frac{x(x-1)}{x(x-1)}=3x(x-1)$

x² − 1 = 3x² − 3x
2x² − 3x + 1 = 0
(2x − 1)(x − 1) = 0

$x=\frac{1}{2}\text{ or }x\neq 1 \text{ undefined}$

Use a similar process as part (a).