Question

If m + 2/5 = 1/2 , then which of the following is true?

2 m + 4 = 5
m + 4 = 6
2 m + 2 = 5
m + 2 = 2

Answer 1

Interpret the fraction as (m + 2)/5 = 1/2.

Multiply both sides by 5: m + 2 = 5/2, so m = 5/2 − 2 = 1/2.

Check the choices:
- 2m + 4 = 2(1/2) + 4 = 1 + 4 = 5 ✔

So the true statement is: 2 m + 4 = 5.

(If the equation had been m + 2/5 = 1/2, then m = 1/10 and none of the options would be true.)