Answer:
45 marbles : number of marbles that Dalia bought in total
Step-by-step explanation:
Because Dalia's brother has 7 marbles and lost 2, then, he received 9 marbles in total.
Dalia distributed the marbles between four of her friends and her brother, that is, between 5 people.
Dalia gave each one the same amount of marbles as her brother, that is, 9 marbles
x=number of marbles that Dalia gave her brother jake = 7+2 =9
y= number of people to whom Dalia gave marbles= 4+1=5
z= total number of marbles that Dalia bought
= 9*5=45
Total number of marbles that Dalia bought
= 45 marbles
