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determinati suma tuturor numerelor naturale care dau catul 130 prin impartirea la 7

Răspuns :

x÷7= 130 c.
x⇒7×130=910                          S=910+911+912+913+914+915+916=6 391
x⇒7×130+1=911
x⇒7×130+2=912
x⇒7×130+3=913
x⇒7×130+4=914
x⇒7×130+5=915
x⇒7×130+6=916