Which value of x satisfies both -9x + 4y = 8 and -3x − y = 4 given the same value of y?

-9x+4y=8 (equation. 1)

-3x-4=4. (equation 2)

(1) + (2)

-12x+3y=12

-4x+y=4

y=4+4x (3)

substitute y value in eq (1)

-9x+4(4+4x)=8

-9x+16+16x =8

7x+16=8

7x=-8

x=-8/7

therefore substitute x in eq (3)

y=4+4(-8/7)

y=4-32/7 = 28-32/7

y= -4/7

x=-8/7, y=-4/7.

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.