Question

Separate the number 39 into three parts. The

second part is three times the first part, and
the third part is three times the second part.

Answer 1

Explanation:

You can also do this without 3 variables if you find it easier:

1st part: x

2nd part: 3x

3rd part: 9x

9x + 3x + x = 39

13x = 39 combine like terms

x = 3 divide by 13.

Plug in value of x to find other two parts