Question

seven less than four times a number equal 13

Answer 1

Seven less than four times a number equal 13
answer is

4n - 7 = 13

hope it helps

Answer 2

Answer: n = 5

Explanation: 
7 less: - 7
four times: 4
a number: n
equal: =
13: 13 
4n - 7 = 13 
Solve for n. 
4n - 7 = 13 
4n - 7 + 7 = 13 + 7 
4n = 20 
4n ÷ 4 = 20 ÷ 4
n = 5