Probability stuck and help needed

[malcolmmalcolmm]

Suppose a kangaroo lives on the real line and can perform unit length jumps
in either the positive or negative direction. How many different ways can
he find to get from 0 to 3 in 15 jumps? Ex: +-+-+-++-+-+-++

I have tried to solve but I am unsuccessful, so I would like to ask for some help
Big thanks in advance

 

[Deleted member 4993]

Suppose a kangaroo lives on the real line and can perform unit length jumps
in either the positive or negative direction. How many different ways can
he find to get from 0 to 3 in 15 jumps? Ex: +-+-+-++-+-+-++

I have tried to solve but I am unsuccessful, so I would like to ask for some help
Big thanks in advance

Please show us what you have tried and exactly where you are stuck.

Please follow the rules of posting in this forum, as enunciated at:

https://www.freemathhelp.com/forum/threads/read-before-posting.109846/#post-486520

Please share your work/thoughts about this problem.