JY Lye's answer to Valli's Secondary 1 Maths Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
JY Lye
Jy Lye's answer
220 answers (A Helpful Person)
1st
Hope this helps!
Valli
Valli
2 years ago
Tysm, but could you please specify why the + turns into - in the 3rd step?