A system of equations where both X and Y cancel and you are left with just a number is called

the ratio of balloons to tables is 5: 2 and the constant variation is 5.

the equation is y=5x

the image is given below

since the options are not given so we draw it from the equation

the given equation is

y = (x-1) (x+4)

y = y² + 3x - 4

the above equation is a quadratic equation which will have two roots. if we draw the graph for it, it will look like this