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0,3*x = 0,2*30 |:0,3
x = 0,2*30/0,3 = 20
Odp.:
x = 20
5% z 8 = 4% z x
0,05*8 = 0,04 * x |:0,04
x = 0,05*8/0,04 = 10
Odp : x = 10
110% z 24 = 24 % z x
1,1*24 = 0,24 *x |:0,24
x = 1,1*24/0,24 = 110
Odp.: x = 110