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Rezolvati ecuatiile :
a) 108:x=18
b)72:x+2=6


Răspuns :

108:x=18
x=108:18=6

72:x+2=6
72:x=6-2
72:x=4
x=72:4
x=18


108:x=18

x=108:18

x=6


72:x+2=6

72:x=6-2

72:x=4

x=72:4

x=18