Elijah Elliott Phua's answer to Jacqueline's Primary 5 Maths Whole Numbers Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Elijah Elliott Phua
Elijah Elliott Phua's answer
3 answers (Tutor Details)
1st
if you have one unknown, you need one equation to solve it.