Step-by-step explanation:
[tex]w = - \frac{5}{9} [/tex]
[tex]x = \frac{4}{3} [/tex]
[tex] \: [/tex]
[tex] = w + ( - x) + \frac{2}{3} [/tex]
[tex] = - \frac{5}{9} + ( - \frac{4}{3} ) + \frac{2}{3} [/tex]
[tex] = - \frac{5}{9} - \frac{4}{3} + \frac{2}{3} [/tex]
[tex] = - \frac{5}{9} - \frac{2}{3} [/tex]
[tex] = - \frac{5}{9} - \frac{6}{9} [/tex]
[tex] = - \frac{11}{9} [/tex]
