How do I solve this algebra question

-2 (3z+1) - 10=4?

-2 (3z+1) - 10=4

-2 (3z+1) = 14

-6z-2=14

-6z=16

16/-6 = -.375

First way (no distribution)

-2 (3z + 1) - 10 = 4

-2 (3z + 1) = 14

3z + 1 = - 7

3z = - 8

z = - 8/3

Second way (with distribution)

-2 (3z) - 2 (1) - 10 = 4

-6z - 2 - 10 = 4

-6z = 16

z = 16/-6 = - 8/3

z = 26/-6