Last week the first graders borrowed d books and the second graders borrowed 15 books. The third graders borrowed 24 books the 3 grades borrowed 54 books in

Question

write the equation with A variable and solve it

Answer 1

Hi, Shreka.

 

So if the 3 grades borrowed 54 books in all and :

1st graders borrowed d books

2nd graders borrowed 15 books

3rd graders borrowed 24 books

 

Now we can add them all;

 

d + 15 + 24 = 54

d + 39 = 54

d + 39 -39 = 54 - 39

d = 15