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rezolvati in multimea z ecuatia:
a] 3*x=81
b][-11]*y=121
c][-35]*z=-210


Răspuns :

a.3x=81 >>>x = 81/3 >>> x = 27
b.-11y=121 >>> y = - 121/11 >>> y = -11
c.-35z=-210 >>> z = 210/35 (dispare minus deoarece - impartit la - = + ) >>>z=6