yantong's answer to Crystal Fung's Primary 6 Maths question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
yantong
Yantong's answer
17 answers (A Helpful Person)
1st
I solved this using algebra method, not sure whether you understand or not
Crystal Fung
Premium Tutor
Crystal Fung
6 years ago
Thank you