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REZOLVATI IN Q ECUATIILE : A) 3X+5=2; B) 5X-3(X-6)=7X+13; C) I2X-1I=5

Răspuns :

Răspuns:

A) 3x=2-5

3x=-3

X=-1

B)5x-3x+18=7x+13

5x-3x-7x=-18+13

-5x=-5.|(-1)

X=5

C)2x+1=5

2x=6

X=3