0.6(p-1)+p+2
y-(y+6)+(y-4)
-6(k-b)-2(k-3b)
4x-(1-2x)+(2x-7)
2(7.3-1.6x)+3.2x-5.6

0.6(p-1)+p+2=0,6p-0,6+p+2=1,6p+0,4y-(y+6)+(y-4)=y-y-6+y-4=-10+y-6(k-b)-2(k-3b)=-6k+6b-2k+6b=-8k+12b4x-(1-2x)+(2x-7)=4x-1+2x+2x-7=8x-82(7,3-1,6x)+3,2x-5,6=14,6-3,2x+3,2x-5,6=9