jekadva 1)= -6p-8-2p+6=-8p-2
2)= -8r-2+4r-3=-4r-5
3)= -z-8-6z+5=-7z-3
4)= -s-5-2s+2=-3s-3
5)= -7s+4+8s-4=s
6)= -4f+9-8f-9=-12f
7)= -8f-f+8=-9f+8
8)= 4p-4-7p-7=-3p-11
9)= 7v-9-6v-9=v-18
10)= -3g+5g-5=2g-5