(20PTS) - Ayuda, porfavor?
(20PTS) - Ayuda, porfavor! - 4m + 5n - [ - 3p + n – 12m + ( - 7n + 8m – 11 p ) – 2m + p ] - ( 3 / 7 x - 6 / 10 y + 5) + (9 - 5 / 8x + 1 / 2 y + 4 / 5 ) 2 - {11a – 3b + [ - 8 – (a – 2b + 7 ) – 9a ] - 12 } - 3 - ( a + b – c ) + ( 2 - c + 3b ) – ( - 5a + 4b – c ).
