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Popular >

One number is 9 more than another number. Twice the sum of the two numbers is 10. Let x and y be the 2 numbers

Solution

One number is 9 more than another number. Twice the sum of the two numbers is 10. Let x and y be the 2 numbers

Solution

The numbers : 7, - 2

Solution steps

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

x = 9 + y

2 (x + y) = 10

x = 9 + y, 2 (x + y) = 10 : x = 7, y = - 2

The numbers : 7, - 2

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