Question

Ok I don't have time to do this i got to study for a history test so can some one simplify these real fast pls

5(2z-1)
(4-2k)8
(15-4a)5
6(n+1.2)
(n-8.2)5

And can u do these
6(n+4)=42. -6(x+8)=0. 3(-4+2r)=-24. 8(-7y-6)=-160
(2a+1.75)2=7.5 (2.3-6n) 1/5=3.14

Thx pals

Answer 1

1. 10z - 5

2. -16k + 32

3. -20a + 75

4. 6n + 7.2

5. 5n - 41

6. n = 3

7. x = -8

8. r = -2

9. y = 2

10. a = 1

11. n = -2.23333333 ( this is the only problem im unsure of answer )