Los exact op:

$
1\frac{1}
{2}x - \frac{2}
{3} = \frac{1}
{3}x + 1\frac{1}
{6}
$

Los exact op:

$
5x + 11 \ge 9x - 1
$

Ontbind in factoren:

$
\eqalign{
  & 30 =\cr
  & 2x^2  - 6x = \cr
  & x^2  - 5x + 6 = \cr
  & x^2  + x - 12 = \cr}
$

Los exact op:

$
2x^2  + 2x = 24
$