tolong dibantu ya kaka

jawaban b
[tex]a = \frac{2}{3} b \\ b = \frac{2}{7} c \\ a = 12.000 \\ b - c = ..... \\ a = \frac{2}{3} b = \\ 12.000 = \frac{2}{3} b \\ b = 18.000 \\ b = \frac{2}{7} c \\ 18.000 = \frac{2}{7} c \\ c = 63.000 \\ selisihnya \: 63.000 - 18.000 = 45000[/tex]
maaf barangkali masih ada yg salah