Lim Zhen Heng's answer to Soh En Xuan's Secondary 3 E Maths question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Lim Zhen Heng
Lim Zhen Heng's answer
15 answers (Tutor Details)
1st
In equations, whatever you do on one side, you do on the other side as well