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Popular >

the sum of 2 numbers is 30 and their difference is 12. find the two numbers

Solution

the sum of 2 numbers is 30 and their difference is 12. find the two numbers

Solution

The numbers : 21, 9

Solution steps

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

x + y = 30

x - y = 12

x + y = 30, x - y = 12 : x = 21, y = 9

The numbers : 21, 9

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