Question

Which of the following systems of equations is an example of one where substitution is the best method?

Answer 1

To me, the third one is the best.

Note: y has been made subject of formula which makes it easy to substitute it into equation 2 and find x .

Explanation:

Answer 2

option c is the correct ans .

because we can easily substitute the value of y in equn 2 to get value of x..