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a) 5 supra x = - 3 supra 2
b) x + 2 supra 3
c) 3 x = 0,(3) supra 7


Răspuns :

a) 5/x = - 3/2
x=5/(-3/2)=
-10/3

b) x + 2/3              ??????

c) 3 x = 0,(3)/7
 3 x = (1/9)/7
 3 x = 1/63
x=(1/63 )/3
x=1/189