Question

When Reena  subtracted 9 from thrice a number, the result was 15. Then the number is

-7

8

-3

-8​

Answer 1

Explanation:

let the number be x

3x-9=15

3x=15+9 add 9 from both sides

3x=24

x=8

Answer 2

8

Explanation:

Thrice means the same as 3, so 3 × 8 = 24 and when 9 is subtracted from 24 it is equal to 15