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Determinati x stiind ca 0,125 = 0,025 . (ori) (x+4)

Răspuns :

[tex] \frac{125}{1000} = \frac{25}{1000} *(x+4) \\ x+4= \frac{125}{1000}: \frac{25}{1000} \\ x+4= \frac{125}{1000}* \frac{1000}{25} \\ =\ \textgreater \ x+4=5 \\ =\ \textgreater \ x=1[/tex]


0,125=0,025×(x+4)<=>(inmultim relatia cu 1000)125=25×(x+4)<=>125=25x+100<=> 125-100=25x<=>25=25x=>x=1.