Final answer:
According to the rules of mathematics, 7 and -7 are the same number.
Step-by-step explanation:
According to the rules of mathematics, Danny and Luis are correct. 7 and -7 are the same number. When two positive numbers are added, the answer remains positive. Similarly, when two negative numbers are added, the answer remains negative. In this case, both 7 and -7 are positive numbers, so they are equal.
On the other hand, Mae and akik are incorrect. 7 and -7 do not combine to make 0. When a positive number and a negative number are added, the result is always the difference between the two numbers. In this case, the difference between 7 and -7 is 14, not 0.