Question

if 7 is added to 7 times a number, the result will be 28. what is the number

Answer 1

7+7x=28
28-7=21
7x=21
x=21/7=3

Answer 2

Let the required number is x 

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According to the question, 

7(x) + 7 = 28 

7x + 7 = 28 

7x = 28 - 7 

7x = 21 

x = 21/7 

x = 3 


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Then, the required number is 3 

:-)