Ng Ying Liang's answer to Loh Wei Hao Duane's Secondary 1 Maths question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Ng Ying Liang
Ng Ying Liang's answer
4 answers (Tutor Details)
1st
Done
Loh Wei Hao Duane
Loh Wei Hao Duane
7 years ago
Sorry but i dont understand,Ts - 1 +2?