Odpowiedzi

2010-03-07T13:41:33+01:00
27-x=35
- x = 8
x = -8



x-16=-9
x = 25



81-x=-13

-x = -94
x= 94


-19+x=20
x = 39


8x=3
x= 3/8


¾x=-2
x = -8/3

-0,6x=9
x = -15
2010-03-07T13:45:08+01:00
27-x = 35 //-27
-x = 8
x= -8

x-16 = -9 //+9
x = 7

2010-03-07T13:55:04+01:00
27-x=35
-x=35-27
-x=8
x=-8

x-16=-9
x=-9+16
x=7

81-x=-13
-x=-13-81
-x=-94
x=94

-19+x=20
x=20+19
x=39

8x=3
x=⅜

¾x=-2
x=-2:¾
x=-2×4/3
x=-8/3
x=-2 i ⅔

-0,6x=9
x=9:(-0,6)
x=-15