Eric Nicholas K's answer to Nicky's Secondary 3 A Maths Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Eric Nicholas K
Eric Nicholas K's answer
5997 answers (Tutor Details)
1st
We use the substitution approach for the solving of such pairs of simultaneous equations in two variables to solve for the two variables.
Nicky
Nicky
4 years ago
Thankssss!! After you sent this i realised that i made a mistake in one of the steps that why i didn’t get the answer.