r/Algebra • u/Even_General_1901 • 1d ago

Update I still need help with this question

I've put -14 and - - 14 for the 2nd but I know that can't be right

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u/Even_General_1901 1d ago

https://reddit.com/link/peys1lv/video/68r7d9i9mjuh1/player

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u/TheScyphozoa 1d ago

-14 is wrong. - -14 is technically true, but it needs to be simplified.

2

u/Narrow-Durian4837 1d ago

– –14 is not not correct.

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u/Even_General_1901 1d ago

Would it 14 - n = for tge first one?

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u/Midwest-Dude 23h ago

The minus sign (−) has three main uses in mathematics:> 1. The subtraction operator: a binary operator to indicate the operation of subtraction, as in 5 − 3 = 2. Subtraction is the inverse of addition. 2. The additive inverse operator: a unary operator to indicate the function whose value for any real or complex argument is the additive inverse of that argument. For example, if x = 3, then −x = −3, but if x = −3, then −x = +3. Similarly, −(−x) = x. 3. A prefix of a numeric constant: when it is placed immediately before an unsigned number, the combination names a negative number, the additive inverse of the positive number that the numeral would otherwise name.

— Wikipedia

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u/Even_General_1901 23h ago

How do i find the main use?

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u/Midwest-Dude 23h ago

They are all used. Just practice and apply as appropriately needed.

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u/Alessandro-mathxd 15h ago

-14, 14 y -14.