Question

I think of a number.I add 7 to it and then divide it by 10.My answer is 3.8. what number did I start with?​

Answer 1

Answer:

31

Step-by-step explanation:

(x + 7) / 10 = 3.8

x + 7 = 3.8 * 10

x + 7 = 38

x = 38 -7

x = 31