Tan Kiat Boon's answer to Serene Kang's Secondary 3 E Maths question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Tan Kiat Boon
Tan Kiat Boon's answer
197 answers (Tutor Details)
1st
Hope it helps! Theres other ways even your teacher present differently. Im just showing one of the way you can solve it