Question

Express as a sum: 15–7

Answer 1

We are given 15-7 here and we have to express it as sum.

Let us first understand the property to be use here.

We can write (a-b) as (a+(-b))

For example:

If we have 7-2, we can rewrite it as 7+(-2)

and then we can combine them to get 5

Now let us use the above property for our question,

We are given,

15-7

rewriting it as addition,

15+(-7)

+ and - on multiplication will be (-)

so +(-7) will remain -7 only

Answer: 15-7 = 15+(-7)

Answer 2

-7+15. this is what i think it is.