The sum of two numbers is 161, while the difference of the two numbers is 23. what are the two numbers?

we call : a, b - the numbers 

a + b = 161

a - b = 23  ⇒  a = 23 + b 

23 + b + b = 161

2b + 23 = 161

2b = 161 - 23

2b = 138                       a = 23 + b

b = 138 : 2                    a = 23 + 69

b = 69                           a = 92

A+b=161 +
a -b= 23

2a = 184
a = 92
b = 161 -92
b = 69

$22. if larry's profit were to minimize by one for every hour his store were to be closed, we would subtract 30 by 8.