The sum

The sum of the two numbers is 69, and the difference is 11. Which numbers are they?

Correct answer:

a =  40
b =  29

Step-by-step explanation:


a+b=69
a-b=11

a+b = 69
a-b = 11

Row 2 - Row 1 → Row 2
a+b = 69
-2b = -58


b = -58/-2 = 29
a = 69-b = 69-29 = 40

a = 40
b = 29

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