Question

If 7 is added 7 times in a number the result is 28,what is the number

a.5
b.3​

Answer 1

7 times = 7x

7x + 7 = 28

7x = 28 - 7

7x = 21

x = 21/7

x = 3

Hence the number is 3

Answer 2

Answer:

let the number be x

according to question

7x +7 = 28

$7x = 28 - 7$

$7x = 21$

$x = \frac{21}{7}$

$x = 3$