E=4w+(5-8x)=4x+5-8x=-4x+5
F=9.5+(-7x+8.2)=9.5-7x+8.2=17.7-7x
G=(5x+4)+(-3x-2)=5x+4-3x-2=2x-2
H=11.7-(4+8x-9)=11.7-4-8x+9=16.4-8x
K=5x-(2x-3)=5x-2x+3=3x-3
L=3x²-(4x²-x+5)=3x-4x²²+x-5=-1x²+x-5
M=4+6x-(-2x+7)=4+6x+2x-7=-3+8x
N=-5x-(-5x²+x+1)=-5+5x²-x+1=-6x+5x²+1
P=(-5x+7)-(8-3x)+x=-5x+7-8+3x+x=-1x-1
Q=8-x
R=2x²+1x+2