Question

jangan ngasal
pake cara
tolong dibantu dijawab​

Answer 1

AC : CB = 2 : 1

AC = 2 × CB

C – A = 2 × (B – C)

C – A = 2B – 2C

2C + C = A + 2B

3C = A + 2B

C =

AC : CB = 3 : –2

3 × AC = –2 × CB

3 × (C – A) = –2 × (B – C)

3C – 3A = –2B + 2C

3C – 2C = 3A – 2B

C = 3A – 2B = =