a+b = 88
Пошаговое объяснение:
a+ab+b = 2020
a(1+b) + b = 2020
a(1+b) + b+1 = 2021
(a+1)(b+1) = 2021
(a+1)(b+1) = 43*47
a+1 = 47
b+1 = 43
a = 46
b = 42
