Los exact op:
$ 1\frac{1} {2}x - \frac{2} {3} = \frac{1} {3}x + 1\frac{1} {6} $
$ 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} $
$ 2x^2 + 2x = 24 $
