Question

If three times a certain number is increased by 4 the result is 28

Answer 1

The number is 8. You work backwards. 28-4=24. 24/3=8

Answer 2

The number is 8

Explanation:

Let x be the number

3x+4 = 28

Subtract4 from each side

3x+4-4 = 28-4

3x= 24

Divide by 3

3x/3 =24/3

x = 8