Question

the sum of a certain number and 3 can we written are using letter as a ______​

Answer 1

Answer:

let the no be.= x

so, here it is written sum of a no. and 3

x+3

Answer 2

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

This can be better understood by the following steps:

• We have to add a number and 3. And we have to represent it using a letter.
• This letter can be one of the letters out of 26 English alphabets. For example, a, b, c, d, etc.
• Now, this letter can be any number that is to be added to 3. For example, if x is 2 then (2+3) is 5 and if x is 5 then (5+3) is 8.
• We encounter these types of expressions in mathematics generally when we are solving linear equations in variables.