How can x2 = 2x + 4 be set up as a system of equations?

y = x2 - 2x + 4
y = x2 + 2x + 4
y = x2
y = x2 + 2x + 4
y = x2 + 2x
y = x2 + 4

y = x2
y = 2x + 4
@amistre64 plz help me

Question

How can x2 = 2x + 4 be set up as a system of equations?

 y = x2 - 2x + 4
y = x2 + 2x + 4
 y = x2
y = x2 + 2x + 4
 y = x2 + 2x
y = x2 + 4
 
y = x2
y = 2x + 4
@amistre64 plz help me

amistre64 · Answer

well, y= this and y=that generally allows is to let y=y, or this=that

anonymous · Answer

u just confused me and left thats not good xD @amistre64

amistre64 · Answer

not sure why its confusing;  a system of equations allows us to equate the equations

amistre64 · Answer

you have this = that ... so to set up a system, we just let y=y

therefore y = this, and y = that is our system

anonymous · Answer

nvm.. ur not helping.