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|7-14x|=28 calculati modulu


Răspuns :

  • Exista 2 variante

I

7-14x = 28

-14x = 21

x =

[tex] - \frac{28}{7} = - \frac{3}{2} [/tex]

II

-(7-14x)=28

-7+14x = 28

14x = 35

x =

[tex] \frac{35}{14} = \frac{5}{2} [/tex]

Deci x{-3/2 ; 5/2}