PLIS TOLONG JAWABB BUAT SEKARANG BANGET

a.
[tex] \frac{2x}{x+1} = \frac{6}{4,5} \\ \\ (2x ). 4,5 = 6(x+1) \\ \\ 9x = 6x + 6 \\ \\ 9x - 6x = 6 \\ \\ 3x = 6 \\ \\ x = 2[/tex]

b.
BE = 3x - 1 = 3(2) - 1 = 6 - 1 = 5

DE = 2x = 2(2) = 4
[tex] \frac{DE}{CE}= \frac{AE}{BE} \\ \\ \frac{4}{CE} = \frac{6}{5} \\ \\ 6 CE = 20 \\ \\ CE = \frac{20}{6} = 3,33[/tex]