Question

Anyone wanna solve this system of equations? First one to get the right answer, gets a medal. (I just finished solving it)

Answer 1

5=y-x
4x^2=-17x+y+4

Answer 2

Second equation will be a quadratic if we make it all x's.
y - x = 5
4x^2 + 17x - y - 4 = 0

Using the first equation, we will find y in terms of x.
-y + 5 = -x
y - 5 = x
y = x + 5

Plug that into the second equation
4x^2 + 17x - (x + 5) - 4 =0
4x^2 + 17x - x - 9 = 0
4x^2 + 16x - 9 = 0
(2x - 1)(2x + 9)
x = 0.5 or x = -4.5

Answer 3

5 = y-x
add x both side
5 +x = y
i guess this one simple instead moving y first

Answer 4

Yup, x's are correct and you'd get the y's