Question

y=4x+45
x=4y

Answer 1

solving systems of equations

Answer 2

anyone

Answer 3

HALP

Answer 4

y= 4(4y)+45
y=16y+45
-15y=45
y=-3
x=4(-3)
x=-12

Answer 5

y=4(4y)+45
y=16y+45
y=2.8 or 3