A) 3x+5y-x+2y=
Group the same sexes
3x-x+5y+2y=
3x-x=2x
+5y+2y=7y
answer: 2x+7
B) 3g+5h+4g-2h=
Group the same sexes
3g+4g+5h-2h=
3g+4g=7g
+5h-2h=+3h
answer: 7g+3h
C) 4p+2p-3p=
Do not need to be grouped. Because everyone is of a gender
4p+2p=6p
6p-3p=3p
answer: 3p
D) 9s-5s+2s-s=
Do not need to be grouped. Because everyone is of a gender
9s-5s=4s
4s+2s=6s
6s-s=5s
answer: 5s
E) 8t+3r-7t-9r=
Group the same sexes
8t-7t+3r-9r=
8t-7t=t
+3r-9r=-3r
answer: t-3r
