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daca a × b=490 si a×c =350 calculeaza: a×(b+c):7. si. a×(b-c):10

Răspuns :

Renatemambouko
a × b=490
a×c =350
a×(b+c):7=(a×b+a×c):7=(490+350) :7=70+50=120

a×(b-c):10 =(a×b-a×c):10 =(490-350):10=49-35=14



Bobo65
ax(b+c):7=(490+350):7=840:7=120
ax(b-c):10=(490-350):10=140:10=14

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