(2/9 - 5/12х) *9-2= 15
(2/9 - 5/12х) *9= 15-2
(2/9 - 5/12х)*9=13
(2/9 - 5/12х)= 13:9
(2/9- 5/12х)= 1 4/9 (1 целая 4 девятых)
-5/12х= 1 4/9 ( 1 целая 4 девятых) - 2/9
-5/12х= 1 2/9 (1 целая 2 девятых)
х= 1 2/9( 1 целая 2 девятых) : ( - 5/12)
х= 5/9 ( 5 девятых)