Answer:
[tex]x = 28 \frac{7}{8} \\ [/tex]
Step-by-step explanation:
[tex] \frac{7}{3} (x + \frac{9}{28} ) = 20 \\ \frac{7x}{3} + \frac{3}{4} = 20 \\ \frac{7x \times 4}{3 \times 4} + \frac{3 \times 3}{4 \times 3} = 20 \\ \frac{28x + 9}{12} = 20 \\ 28x + 9 = 20 \times 12 \\ 28x + 9 = 240 \\ 28x = 240 - 9 \\ 28x = 231 \\ x = \frac{231}{28} \\ x = 28\frac{7}{8} [/tex]
