tolong di bantu ya kak

Penjelasan dengan langkah-langkah:
3b + 2b = 90
5b = 90
b = 18
<ABC = 3b = 3. 18 = 54
jawabannya 54
maaf kalau salah
[answer.2.content](2014. latest edition) Tibet Autonomous Region dual traffic map (laminated cover letters folded ma
(2014. latest edition) Tibet Autonomous Region dual traffic map (laminated cover letters folded ma
Penjelasan dengan langkah-langkah:
3b + 2b = 90
5b = 90
b = 18
<ABC = 3b = 3. 18 = 54
jawabannya 54
maaf kalau salah
[answer.2.content]