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(F:5-5)×9:10×186:6=400:10

Ajutor va rog! Am nevoie


Răspuns :

(F:5-5)×9:10×186:6=400:10  

(f:5-5)*0.9*31=40

f:5-5=40:27.9

f=(40:27.9+5):5