Suppose you have 30 CDs. You know that you have 11
more CDs than your friend. Write and solve an
equation to find the number of CDs your friend has.

A. n – 11 = 30; 41

B. 30 + n = 11; –19

C. 30 + 11 = n; 41

D. n + 11 = 30; 19

Question

Suppose you have 30 CDs. You know that you have 11 
more CDs than your friend. Write and solve an 
equation to find the number of CDs your friend has.

A. n – 11 = 30; 41	

B. 30 + n = 11; –19	

C. 30 + 11 = n; 41	

D. n + 11 = 30; 19

zzr0ck3r · Answer

your friend has n you have 11 more at 30 so n+11=30 n = 19

anonymous · Answer

Yupp, B is the right one which also corrosponds with zzrock3r comment/solution.

shane_b · Answer

Um...it's not B...it's D :)

anonymous · Answer

Ups B and C are quite similar. Of course D then, I guess nobody can own -19 CDs. 
However you might say that the friend has -19 CDs in comparison to you.

shane_b · Answer

hehe ok!