Question

How many solutions does the equation −4y + 4y + 2 = 2 have?

Two

Zero

One

Infinitely many

Answer 1

−4y + 4y + 2 = 2
−4y + 4y    = 2 -2
               0 = 0 .  

Anytime you have this format of 0 = 0, just know there are infinitely many.

Any number as a value of y can satisfy the equation.

Infinitely many