Question

Substitution would be the best method for solving which system?

Answer 1

Answer:

Assuming its asking which is the easiest one to use substitution its the last one: y= 2x : x + y = 28

Step-by-step explanation:

Because y and x are already one opposite sides you can substitute y in the 2nd equation with 2x. So you'll get 3x = 28 so x = 9.333333334. Then you plug your answer for x in the original equation to get y = 18.666666667

Answer 2

Answer:

The last one

Step-by-step explanation:

Because it tells you what y is