Solve the system using the linear combination method. first equation. 5 x plus y equals 5 second equation. 10 x plus 3 y equals 20

y = 10 , x= -3

Note: I have never hears this called "combination method"

if you research this on-line it is typically called the "elimination" or the  "addition" method.

Step-by-step explanation:

5x + y = 5

10x + 3y = 20

multiply top equation by -2

-10x + -2y = -10

10x + 3y = 20

y = 10

x= -3

not enough information

step-by-step explanation:

we cannot know this, because the other students could have handed out 10 flyers, or they could have handed out 100. one way, the mean would go up, and another way, the mean would go down.