How do you simplify:

10 (2.1q-2) + (7.5q+18)

(-6y-2) + 5 (3+2.5y)

1/2 (6x-10) + 1/3 (6+9x)

(3x+8) - 6 (2.5x-3)

(7-3t) - 5 (-1.6t+5)

1/2 (12w+8) - 1/5 (10w-5)

So 10.

first parenthasees ()

so 10 (2.1q-2) = 21q-10

then you do the rest

21q-20+7.5+18

add like terms

28.5q-2

second

(-6y-2) + 5 (3+2.5y)

distribute the 5

15+12.5y

add like terms

-6y-2+15+12.5y

6.5y+13

3rd

1/2 (6x+10) + 1/3 (6+9x)

distribute

3x+5+2+3x

add like terms

6x+7

4th

(3x+8) - 6 (2.5x-3)

distrubute

-15x+18

add like terms

3x+8-15x+18

-12x+26

5th

(7-3t) - 5 (-1.6t+5)

distribute

+8t-25

add like terms

7-3t+8t-25

5t-18

6th

1/2 (12w+8) - 1/5 (10w-5)

distribute

6w+4-2w+1

add like terms

4w+5