Question

12=10-2 (3z-4) please hellp please

Answer 1

12=10-2(3z-4)
12=10-6z+8
12=-6z+18
12-18=-6z
-6=-6z
z=1

Answer 2

12 = 10 - 2(3z - 4)    |use distributive property: a(b - c) = ab - ac

12 = 10 - 6z + 8

12 = 18 - 6z      |subtract 18 from both sides

-6 = -6z    |divide both sides by (-6)

z = 1