Natalie had some marbles. She gave 1/3 of them to her brother,who kept 12 marbles for himself and gave the rest to 5 friends.If each friend received 7 marbles, how many marbles did Natalie have at firts?

Respuesta :

ok so
if her brother had 12 and she had 5 friends who ahve 7 each thats 7*5+12 so 35+12 =47
(7*5+12)*3=(35+12)*3=47*3=141 marbles