15 3_8 : ( 2 3_4 x + 5 5_6) - 1 1_2 = 3_4

( P.s _ это значит черта, ( дробная.) срочно, помогите!

15 3/8 : ( 2 3/4 x + 5 5/6) - 1 1/2 = 3/415 3/8 : ( 2 3/4 x + 5 5/6) = 3/4 + 1 1/215 3/8 : ( 2 3/4 x + 5 5/6) = 3/4 + 1 2/415 3/8 : ( 2 3/4 x + 5 5/6) = 1 5/415 3/8 : 2 1/4 = 2 3/4 x + 5 5/6 123/8 : 9/4 = 2 3/4 x + 5 5/6 123/8 * 4/9 = 2 3/4 x + 5 5/641/2*3 = 2 3/4 x + 5 5/641/6 - 5 5/6 = 2 3/4 x6 5/6 - 5 5/6 = 2 3/4 х1 = 11/4хх= 1 : 11/4х= 1 * 4/11х= 4/11

х= 1 : 11/4х= 1 * 4/11х= 4/11Ответ: 4/11