Решите уравнение с дробями: 9 1/5 - (5·х - 4 1/2) : 11 1/4 = 8 14/15

Решите уравнение с дробями: 
9 1/5 - (5·х - 4 1/2) : 11 1/4 = 8 14/15 9 1/5- 5х: 11 1/4+ 4 1/2: 11 1/4= 8 14/15 9 1/5- 5х : 45/4+ 9/2: 45/4= 8 14/15 46/5- 5х• 4/45+ 9/2• 4/45= 134/15 46/5- х• 4/9+ 1/1• 2/5= 134/15 46/5- 4/9х + 2/5= 134/15 -4/9х= 134/15- 46/5- 2/5 -4/9х= 134/15- (48•3)/(5•3) -4/9х= 134/15- 144/15 -4/9х= -10/15 -4/9х= -2/3 х= (-2/3): (-4/9) х= 2/3• 9/4 х= 1/1• 3/2 х= 3/2= 1 1/2= 1,5 ответ: х= 1 1/2= 1,5. проверка 9 1/5 - (5·х - 4 1/2) : 11 1/4 = 8 14/15 9 1/5- (5 • 3/2- 9/2): 45/4= 8 14/15 9 1/5- (15/2- 9/2)• 4/45= 8 14/15 9 1/5- (6/2)• 4/45= 8 14/15 9 1/5- 3/1• 4/45= 8 14/15 9 1/5-1/1• 4/15= 8 14/15 46/5- 4/15= 8 14/15 (46•3)/(5•3)- 4/15= 8 14/15 138/15- 4/15= 8 14/15 134/15= 8 14/15 8 14/15= 8 14/15 если часть в десятичных дробях переводим в десятичные 9 1/5= 9 (1•2)/(5•2)= 9 2/10= 9,2 4 1/2= 4 (1•5)/(2•5)= 4 5/10= 4,5 11 1/4= 11 (1•25)/(4•25)= 11 25/100= 11,25 или калькулятором 1: 5=0,2; 9+0,2=9,2 решите уравнение с дробями: 
9 1/5 - (5·х - 4 1/2) : 11 1/4 = 8 14/15 9,2- 5х: 11 1/4+4,5: 11,25= 8 14/15 9,2+ 0,4- 5х: 45/4= 8 14/15 9,6- 5х• 4/45= 8 14/15 9 6/10- 4/9х= 8 14/15 9 3/5- 8 14/15= 4/9х 9 (3•3)/(5•3)- 8 14/15= 4/9х 1 9/15 - 14/15= 4/9х 24/15- 14/15= 4/9х 10/15= 4/9х х= 10/15: 4/9 х= 2/3• 9/4 х= 1/1• 3/2 х= 3/2= 1 1/2= 1,5 проверка 9 1/5 - (5·х - 4 1/2) : 11 1/4 = 8 14/15 9,2- (5•1,5- 4,5): 11,25= 8 14/15 9,2- (7,5-4,5): 11,25= 8 14/15 9,2- 3: 11 1/4= 8 14/15 9,2- 3 : 45/4= 8 14/15 9,2- 3• 4/45= 8 14/15 9,2- 1• 4/15= 8 14/15 9 1/5-4/15= 8 14/15 8 (1•5+1)/5- 4/15= 8 14/15 8 6/5- 4/15= 8 14/15 8 (6•3)/(5•3)- 4/15= 8 14/15 8 18/15- 4/15= 8 14/15 8 14/15= 8 14/15

2зал)41-33=8 3 зал)33-8=25 1 зал)38-25=13