zhenyaM2002

Verified answer

(d-1)/ 11  =  (2d-3)/8
8(d-1)= 11(2d-3)
8d-8 = 22d - 33
8d - 22d = -33  +8
-14d =-25
d= (-25) / (-14)
d= 1   11/14

проверим:
( 1   11/14   -1 ) / 11 =  (2  *  1  11/14   - 3) /8
11/14  :  11/1  =  (3  4/7  -3)/8
11/14  *    1/11   =   4/7     * 1/8
1/14  = 1/14 

Няфка110 D-11  2d-3
----- = ----
 11      8
11(d-11)=8(2d-3)
11d-121=16d-24
11d-16d= -24+121
-5d = 97 
d=97 : (-5)
d = - 19.4
Ответ: - 19 , 4