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x=1/2
-3x=7 / : -3
x = -7/3
2x=1/5 / :2
x = 1/10
1,2x = 4,8 / 1,2
x=4
1/3x=3 / : 1/3
x=9
-3/5x = -5 / :-3/5
x = 25/3
3/4x = -4/9 / : 3/4
x = 16/27
0,1x = -7 / :0,1
x = -70
x=0,5
b) -3x=7/:(-3)
x= -3.5
c) 2x=1/5 /:2
x=0,1
d) 1,2x=4,8/:1,2
x=4
e) nie wiem
f) nie wiem
g)x=-16/27
h)x=-70