verifica monomi3

                                TEST  DI MATEMATICA

1)      -2x+3ab-3x-3ab=                                                                                       -5x

2)      ax - 3 ax + 6ax-y+4y=                                                                              5ax+3y

3)      a + 2b+3a-5c+a-x-a-2=                                                                            4a+2b-5c-x-2

4)      3a-2a+3/2 -4a+1/2a-5/2a-1=                                                                              -5a+1/2

5)      3a + 3c + 3c - 4a- 3a + 4c+5c=                                                         4a+15c

6)      a- a - a =

7)      a- a -  a  + a - 2a  =

8)      -4ab - ab + 5ab - ab=

9)