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5 votes
If 4 more than 4 times a certain number is the same as 4 more than the product of 3 and 4, what is that number?

A. 3
B. 4
C. 5
D. 8
E. 12

1 Answer

2 votes

Answer: the number is 3

Explanation:

Let the number be represented by x.

If 4 more than 4 times a certain number is the same as 4 more than the product of 3 and 4, it means that

4x + 4 = 4 + 3×4

4x + 4 = 4 + 12

4x + 4 = 16

Subtracting 4 from the left hand side and the right hand side of the equation, it becomes

4x + 4 - 4 = 16 - 4

4x = 12

Dividing the left hand side and the right hand side of the equation by 4, it becomes

x = 12/4 = 3

User Jtwalters
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