Решите уравнение!
1) 2 1/3 : ( х - 1 1/6 ) = 1 5/9
2) 27: ( 31 3/7 - 2 11/14х) = 1 1/8
3)48: (3 4/5х - 25)= 1 1/2

1) 2 1/3 : ( х - 1 1/6 ) = 1 5/97/3=14/9×(x-7/6)14/9x-49/27=7/314/9x=7/3+49/2714/9x=63/27+49/2714/9x=112/27112/27:14/9=112/27×9/14=112/42=56/21=2 14/21=2 2/3X=2 2/32) 27: ( 31 3/7 - 2 11/14х) = 1 1/827=9/8×(220/7-39/14x)9/8×220/7=9/2×55/7=495/149/8×39/14=351/112495/14-351/112 x=27-351/112x=27-495/14-351/112x=378/14-495/14-351/112x=-117/14X= 117/14:351/112X=117/14×112/351=56/21=2 14/21=2 2/33)48: (3 4/5х - 25)= 1 1/248=3/2(19/5x-25)3/2×19/5x=57/10x3/2×(-25)=-75/2= -37 1/257/10x-37 1/2=4857/10x=48+37 1/257/10x=85 1/2X= 171/2:57/10X=171/2×10/57X=15