Eric Nicholas K's answer to Nicky's Secondary 3 A Maths Singapore question.
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
We use the substitution approach for the solving of such pairs of simultaneous equations in two variables to solve for the two variables.
Date Posted:
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.