Please, Toribashers, help me with Algebra, please do this thing. This don't need the answer, you just need to shorten it.

1/2 abca + 3/4 b(-a)ca - 1/12 acba + 5/24 (-b)aca

1/2 abca - 3/4 abca - 1/12 abca -5/24 abca
= -13/24 (a^2)bc
just basic maths

how did you counted? Can you tell step by step please?

first you arrange the variables to the same variable
examplw:baca change it too ABCA
second calculate it

1) x = (a^2)bc
2) (1/2 - 3/4 - 1/12 - 5/24)x
3) (12/24 - 18/24 - 2/24 - 5/24)x
4) (12 - 18 - 2 - 5)x/24
5) -13/24*(a^2)bc

You should use this to check your work:
http://www.wolframalpha.com/input/?i...4%28-b%29a*c*a