ben has 4 more than twice as many cd's as jake. if they have a total of 31 cd's, home cd's does jake have ?

Question

anonymous · Answer

Let Jake's number of CDs be $x$.  Then Ben has $2x+4$ CDs.  Then, what's the sum in terms of $x$?

anonymous · Answer

Jake = j
Ben = b
ben has 4 more than twice jake
b = 4+2j
total 31 cds
b + j =31

anonymous · Answer

you can use subsitution to solve
b = 4+2j
b + j =31
subsitute b = 4+2j into b + j =31
(4+2j)+j=31
simplify to get
4+3j=31
3j=27
j=9
Jake has 9 CDs
b=4+2j or b=4+2(9)
so Ben has 22 CDs

anonymous · Answer

thankk youu!
:)

anonymous · Answer

welcome, glad to help