Question

So this one makes 0 sense, but it ask for you to: Express as a sum: 15-7

Answer 1

The answer is: " 15 + (-7) " .

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Explanation:

Here is what to do:
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Given: " 15 – 7 " ; Express this as a "sum" :
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Note: This given expression is:
" 15 minus 7 "
that is: " 15 – (+7) ;

Note that subtracting a "positive" value;

such as in the very expression given;

is the same value we get when:

adding that particular "negative" value;

→ As such: " 15 – 7 " =

" 15 + (-7) " → which is our answer.
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Hope this is helpful to you!

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