Question

помогите решить уравнении 1. ( 4 1/9 - а) + 8 5/9 = 9 2/9
2. 5 3/7 - ( b - 2 1/7 ) = 2 4/7

Answer 1

1) 41/9-a=92/9-85/9
41/9-a=7/9
a=41/9-7/9
a=34/9
2) b-21/7=53/7-24/7
b-21/7=29/7
b=21/7+29/7
b=50/7

Answer 2

37\9-а+77\9=83\9
-а=83\9-37\9-77\9
-а= -31\9
а= 3 4\9

5 3\7-в+ 2 1\7=2 4\7
-в=2 4\7 -5 3\7 - 2 1\7
-в=-5
в=5