Răspuns:
x/2=6
2×x/2=2×6
x=12
x/5 = 1,4
5×x/5=5×1,4
x=7
x/10 = 7,2
10×x/10=10 × 7,2
x=72
x+3/4=8,5
x+3=34
x=31
14/x = 7
14=7x
7x=14
x=2
24/x = 3
24 = 3x
3x=24
x=8
104/x=13
104=13x
13x=104
10,5/x=7
21/2/x =7
21=14x
14x=21
x=3/2