Question

с.176 №546 (четные))​

Answer 1

1)(5/12-x)•2=2/9
(5/6-2x)=2/9
5/6-2x=2/9
-2x=2/9-5/6
-2x =-11/18
x=11/36
2)4/15-y-3/25=1/25
11/75 -y =1/25
-y=1/25 -11/75
-y=-8/75
y=8/75
3) 3 1/6 :(x-5/16 ) =7/8 ,x≠5/16
49/16 :16x-5 /16 =7/8
49•1/16 x-5 =7 /8
49 /16x -5 =7/8
392=7 16x-5
56 =16×-5
- 16 x=-5-56
-16 x=-61
x= 61/16 ,x≠5/16
x=61/16 =3 13/16

Answer 2

Ответ:

2) х=11/36

3) х=8/75

4) х=61/16=3 13/16