What is the sum of k and the opposite of k?

The opposite of a number  or a variable is the number or variable written with a negative sign.For example opposite of 4 is -4.Opposite of x is -x.

The question is first asking us to write opposite of variable k.

The opposite of k is -k.The question is then asking us to find the sum of  k and the opposite of k .That is k+(-k)= k-k =0

When two opposites are added the result is 0.

The required expression is,

Step-by-step explanation:

Given,

The number of boxes Ray has = 3,

The number of layers of chocolate each box has = 4,

⇒ The total number of layers of chocolates = 4 × 3,

Now, Each layers has 4 rows of chocolate,

⇒ The total number of rows of chocolate = 4 × 4 × 3,

Also, Each row has 4 chocolates,

So, the total number of chocolates = 4 × 4 × 4 × 3,

He distributes these chocolates to his 16 friends,

Hence,

Which is the required expression.