help

3,5?

3x+y=14

y=2x+1

x=2y+1

y=4x-7

3x+2y=19

y+3x-4    →  This isn't an equation

Hayley got one of them......the other two are

y = 4x - 7  →   4(3)  - 7   = 12 - 7  = 5

And

3x + 2y = 19   →   3(3) + 2(5)  =  9 + 10   = 19

I would think, 3x+y=14