Question

What is the value of 7m – 3n when m = 3 and n = 2?

5

15

24

36

Answer 1

Answer: 15

Explanation: When you substitute in the numbers in place of the variables, the equation becomes, 7(3)-3(2)=? 7(3) which is 7 times 3= 21. 3(2) which is 3 times 2=6. Then the equation becomes: 21-6=15.

Answer 2

15

Explanation:

m = 3

n = 2

7(3) = 21

3(2) = 6

21 - 6 = 15