Question

Which equation has all real numbers as solutions?

A 3y = 3y + 1
B 3y = 3
C 3y = 0
D 3y + 1 = 3y + 1

Answer 1

Equation D. If the left side of the equation is the same as the right side, the answer is all real numbers. This is because any value substituted in for the variable will make the equation true.

Answer 2

D has all real numbers as a solution

This is bec both sides show the same thing

Therefore, D has all real numbers as a solution