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b)x=9
c)x= -2/25
d)x=18
e)x= -12 całych i 6/7
f)x= - 1 cala i 1/10
x= 7/28
x=1/4
b) 2x=18 / :2
x=9
c) -5x= 2/15 /*15
-75x=2 /:(-75)
x= - 2/75
d)2/9x=4 /*9
2x= 36 /:2
x= 18
e) 0,7x= -9
7/10x= -9 /*10
7x= -90 /:7
x= - 90/7
x= - 12 6/7
f) 5/8x= -11/16 /:5/8
x= -11/16 * 8/5
x= -11/10
x= -1 1/10
g) -5,8x= 1,2
- 58/10 x = 12/10 /:(-58/10)
x= 12/10 * -10/58
x= -6/29
h) 2,1x= -4/5
21/10 x= -4/5 /: 21/10
x= -4/5 * 10/21
x= -8/21