Question

rewrite the following using a letter.
the sum of a certain number and 3.

Answer 1

Answer:

The sum of a certain number and 3 will be$a + b = 3$.

Step-by-step explanation:

Given: The sum of a certain number and 3.

We have to write the above using a letter.

We are solving in the following way:

We have,

The sum of a certain number and 3.

Let a, b be two number

"Sum of a number is 3".

Then,

According to the given expression, we can write:

$=> a + b = 3$

Hence, the sum of a certain number and 3 is$a + b = 3$.

Answer 2

Given,

The sum of a certain number and 3.

To find,

To write the sum of a certain number and 3 using a letter.

Solution,

The sum of a certain number and 3 using a letter will be (x+3).

We can easily solve this problem by following the given steps.

We know that 'a certain number' can be any number.

Now, let's take this number to be x. ( x is one of the alphabets of 26 English alphabets. You can also take any letter like a, b, or c.)

According to the question,

The sum of a certain number and 3.

The sum of x and 3.

(x + 3).

Hence, the sum of a certain number and 3 using a letter is (x+3).

[This can be easily understood using an example. Let's take this number to be 5 that x = 5. So, the sum will be (5+3) which is 8.]