Question

а) х+3,12=-5,43
б)1 3/14-у=2 7/10

Answer 1

х+3,12=-5,43
х=-5,43-3,12
х= - 8,55

1  3/14-у=2 7/10

17/14 -у=27/10

17/14-27/10=у
 
(17*5-27*7)/70 = у

(85-189)/70 =у

-104/70=у

-52/35 =у

у= -1   17/35

Answer 2

не аерно второе

Answer 3

х+3,12=-5,43
х=-5,43-3,12
х=-8,55

1 3/14-у=2 7/10
-у=2 7/10+1 3/14
-у=3 32/35