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Mathematics 9 Online
OpenStudy (anonymous):

Help!! The sum of two numbers is 45 and the difference is 3 . What are the numbers? large number...... small number ..............

OpenStudy (anonymous):

Explain please i have a test today

OpenStudy (anonymous):

Let x = the larger number. Then x-3 is the smaller number because the difference is 3. You can now add x and x-3 to get 45 and then just solve for "x".

OpenStudy (anonymous):

what the answer i a confused :(

OpenStudy (anonymous):

At this point, we have x + (x-3) = 45 -> (x + x) - 3 = 45 -> 2x - 3 = 45 -> 2x - 3 + 3 = 45 + 3 -> 2x = 48 -> x = 24 and the smaller number = 21

OpenStudy (anonymous):

thanks

OpenStudy (anonymous):

You're welcome! If you like my work, click "best response"

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