Answer:
The solution is (4, 1).
m = 4
n = 1
Step-by-step explanation:
m + n = 5
m - n = 3
m + n + m - n = 5 + 3
m + m = 5 + 3
2m = 5 + 3
2m = 8
2m ÷ 2 = 8 ÷ 2
4 + n = 5
4 - 4 + n = 5 - 4
4 - n = 3
4 - 4 - n = 3 - 4
- n = - 1
- n · - 1 = - 1 · - 1
