PLEASE HELP ;-; Sally is solving the system of equations using elimination. She believes to eliminate x, she would multiply the second equation by 2 then add the equations together. Charlie disagrees, he say multiple the second the equation by 3 then add the equations together.
2x + 3y = 7
x - y = 1

Select who is correct and also the solution.
Question 29 options:

No Solution

Charlie

Sally

(1,2)

(2,1)

(-2,4)

Infinite Solutions