a) 60%x - x + $\frac{1}{3}$ = 2
$\frac{3}{5}$x - x + $\frac{1}{3}$ = 2
$\frac{3}{5}$x - 1x + $\frac{1}{3}$ = 2
x($\frac{3}{5}$ - 1) + $\frac{1}{3}$ = 2
x $\frac{-2}{5}$ + $\frac{1}{3}$ = 2
x $\frac{-2}{5}$ = 2 - $\frac{1}{3}$
x $\frac{-2}{5}$ = $\frac{4}{3}$
x = $\frac{4}{3}$ : $\frac{-2}{5}$
x = $\frac{-20}{6}$
b) x + $\frac{1}{7}$ = $\frac{1}{2}$
x = $\frac{1}{2}$ - $\frac{1}{7}$
x = $\frac{5}{14}$
