Question

41,17+(51,98-х)=78; 6,72-(х- 4,8)=6,27.​

Answer 1

1) 41,17 + (51,98 - х) = 78

51,98 - х = 78 - 41,17

x = 51,98 - 78 + 41,17

x = 15,15.

2) 6,72 - (х - 4,8) = 6,27

х - 4,8 = 6,72 - 6,27

x = 6,72 - 6,27 + 4,8

x = 5,25.

Answer 2

1)41,17+(51,98-х)=78

41,17+51,98-х=78

93,15-х=78

-х=78-93,15

-х=-15,15

х=15,15

2)6,72-(-х-4,8)=6,27

6,72-х+4,8=6,27

11,52-х=6,27

-х=6,27-11,52

-х=-5,25

х=5,25