Question

Which of the following is the correct mathematical expression for:

The difference between three times a number and 4

A. 3x + 4
B. 3x - 4
C. 1/3x + 4
D. 1/3x - 4

Answer 1

B

Explanation:

if the number is x then 3 times the number is 3x

the difference is the subtraction of 3x and 4 , that is

3x - 4