4. 3(4-2x)= -2x
A. -1
B. 1
C. 2
D. 3
6. -4 - 5(x+8)
A. 2x+12
B. 2x - 8
C. -x - 8
D. -20x+8
This appears to be practice with the distributive property: a(b+c) = ab+ac
3(4-2x)= -2x
3*4 - 3*2x = -2x
12-6x = -2x
12 = 4x
3 = x
-4 - 5(x+8)
-4-(5x+5*8)
-4-(5x+40)
-4-5x-40
-5x-44
I suspect a typo in there ...