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LTUDOR
a fost răspuns

1) 7/9X-2/3X=2
2) -3x(2-15X) = -6

Răspuns :

Ignatovvlad201

7/9x-2/7x=2                                                       -3x×(2-15x)=-6

9×7/9x-9×2/3x=9×2                                           -6x+45x²=-6

7x-3×2x=18                                                       -6x+45x²+6=0

7x-6x=18                                                           45x²-6x+6=0

x=18                                                                  3(15x²-2x+2)=0

                                                                          15x²-2x+2=0.

                                                                         

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