Question

Q)​​If 7is added to 7 times a number, the result is 28.What is the number?

Answer 1

Let the number be x

Equation:
7x +7 = 28
7x = 21
x = 21/7 = 3

Answer 2

Let x be the number

7x+7=28

7x=28-7

7x=21

x=21/7

x=3