PLEASE HELP ME PLEASE I DON’T UNDERSTAND

Step-by-step explanation:

remember, when you multiply 2 expressions, you need to multiply every term of one expression with every term of the other expression and then add the results up (while considering their individual signs, of course).

1)

2(s + 8) = -(4s + 2)

2×s + 2×8 = -4s + -2

2s + 16 = -4s - 2

6s + 16 = -2

6s = -18

s = -3

2)

-(8 - 7b) = 6(2 + b)

-8 - -7b = 6×2 + 6×b

-8 + 7b = 12 + 6b

-8 + b = 12

b = 20

3)

6(4x - 11) = 9 - x

6×4x - 6×11 = 9 - x

24x - 66 = 9 - x

25x - 66 = 9

25x = 75

x = 3

4)

-5(4 - x) = 2(-x - 3)

-5×4 - -5×x = 2×-x - 2×3

-20 + 5x = -2x - 6

-20 + 7x = -6

7x = 14

x = 2

5)

-6(y - 1) = 4(9 + y)

-6×y - -6×1 = 4×9 + 4×y

-6y + 6 = 36 + 4y

-10y + 6 = 36

-10y = 30

y = -3

6)

7(2s + 6) = 5(s - 6)

7×2s + 7×6 = 5×s - 5×6

14s + 42 = 5s - 30

9s + 42 = -30

9s = -72

s = -8

7)

z + 4 = 8(-z + 5)

z + 4 = 8×-z + 8×5

z + 4 = -8z + 40

9z + 4 = 40

9z = 36

z = 4

8)

-2(3 + 5x) + 3(1 - x) = 10

-2×3 + -2×5x + 3×1 - 3×x = 10

-6 - 10x + 3 - 3x = 10

-3 - 13x = 10

-13x = 13

x = -1

6.9

step-by-step explanation:

simple math really

6 1/2 times 0.6 = 3.9

but if you are just doing 6 and not 6 1/2 then the answer is 3.6