Answer:
The third equation, [tex]7\frac{1}{2} +m = 4\frac{2}{3}[/tex].
Step-by-step explanation:
In this question, we have to solve the equation for each of the options and after doing so we will see that the only option that will have m equal a positive number is the third option. Here is how we solve that equation:
[tex]7\frac{1}{2} +m = 4\frac{2}{3} \\m = 4\frac{2}{3} - 7\frac{1}{2}\\m = -2\frac{5}{6}[/tex]
