IF A+B=76 A-B=38 A/B=?

a+b = 76
a-b = 38

[first find how much a and b are, add the equations together]

2a = 114

a = 57

57+b = 76
b = 19

(check)
57 - 19 = 38

[now divide]
57 / 19 = 3