Question

if a - 7, what is the value of a ​

Answer 1

Answer:

$a-7$

transposing -7 to the right side

$a=+7\\therefore, a=7$

Step-by-step explanation:

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Answer 2

Given :

a-7 ,value of a=?

Step-by-step explanation:

First form a equation by given values

a-7=0

The -7 transposing right side to left side to constant value and negative sign changed to positive sign.

a=7

therefore,the value of a=7

7 is a prime number. The number 7 is divisible only by 1 and the number itself. For a number to be classified as a prime number, it should have exactly two factors. Since 7 has exactly two factors, i.e. 1 and 7, it is a prime number.