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Rezolvati in Q ecuatia 1-3x/36-xla2 - x/x+6= -1

Răspuns :

(1-3x)/(36-x²) -x/(x+6)=-1
(1-3x) -x(6-x)=-1×(36-x²)
1-3x-6x+x²=x²-36
-9x=-37
x=37/9