Question

Which of the following equations has x = 2 as a solution?

Options

• x + 2 = 5

• x – 2 = 0

• 2x + 1 = 0

• x + 3 = 6

Answer 1

x – 2 = 0

Explanation:

1. Putting x = 2 in x + 2, we get 2 + 2 = 4 ≠ 5 
2. Putting x = 2 in x – 2, we get 2 – 2 = 0
3. Putting x = 2 in 2x + l, we get 2 × 2 + 1 = 5 ≠ 0 
4. Putting x = 2 in x + 3, we get 2 + 3 = 5 ≠ 6

Thus, the above conditions shows that x = 2 is the solution of x – 2 = 0