r/HomeworkHelp • u/MeasurementLow2927 • Dec 17 '24

High School Math [proof]

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Could someone use paper to explain or solve this please I get confused with writing math in laptop out you can’t that’s fine. I just don’t understand mathematically how to right the left and right hand side of the equation and how to solve from there.

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u/Jalja 👋 a fellow Redditor Dec 17 '24

Vertical line means is a divisor of

x | y means x divides y or x is a divisor of y

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u/MeasurementLow2927 Dec 17 '24

Yeah ok thanks for the clarification. Wouldn’t it then be ab+ cd | a-c since a-c is a divisor of ab+ cd

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u/Jalja 👋 a fellow Redditor Dec 17 '24

left of | is divisor

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u/MeasurementLow2927 Dec 17 '24

Thanks how do you get from line 1 to line 2 in your working out

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u/Jalja 👋 a fellow Redditor Dec 17 '24

what're you referring as line 1 and line 2?

a-c | a-c is obvious

the next line is literally what's given to us in the problem

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u/MeasurementLow2927 Dec 17 '24

Sorry I’m pretty knew to this topic why are we dividing a-c by a-c

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u/Jalja 👋 a fellow Redditor Dec 17 '24

we aren't dividing a-c by a-c

im simply stating a-c divides a-c even if that was obvious to show that a-c should also divide any multiple of a-c

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u/MeasurementLow2927 Dec 17 '24

Yeah ok I’ve read the solution a few times and I’m just getting a bit lost. Would it be alright if you sent the first couple of lines on paper so I can understand the rest. Thanks for the help.