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
