`
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
$