Question 8271
16.5d-(d+3)=(d+2)+7 
5d-d-3=d+9
4d-3=d+9
3d-3=9
3d=12
d=4



20.6(x+2)=4-(3-2x)=1 
check to see that you copied the problem accurately...you have two equal signs



24.2(x+1)+15x=-(3x-17)+5x 
2x+2+15x=-3x+17+5x
17x+2=2x+17
15x+2=17
15x=15
x=1



28.8y-3(4-2y)=6(y+1)-2 
8y-12+6y=6y+6-2
14y-12=6y+4
8y-12=4
8y=16
y=2


32.-4(2x-5)+3x=x-28 
-8x+20+3x=x-28
-5x+20=x-28
-6x+20=-28
-6x=-48
x=8



36.-4(2x-5)+3x=x+x-28 
-8x+20+3x=2x-28
-5x+20=2x-28
-7x+20=-28
-7x=48
x={{{48/7}}}
x=6{{{6/7}}}


40. 7-24-3x+8x=-(x+31)
-17+5x=-x-31
-17+6x=-31
6x=14
x={{{14/6}}}
x=2{{{2/6}}}
x=2{{{1/3}}}