The sum of the first and last terms of a ratio is 43. If 17 is added to the latter term, the sum of the two terms before and after the ratio is:

43+ 17=60。

The ratio is 1/3, that is, the ratio of the former item to the latter item is 1: 3, with the former item accounting for 1/4 and the latter item accounting for 3/4.

The first paragraph: 60 * 1/4 = 15.

After: 60 * 3/4 = 45

The original ratio is:15: (45-17) =15: 28.

The original ratio was 15/28.

4x+2(9-x)=28

4x-2x+ 18=28

2x=28- 18

x= 10/2

x=5