-42=-8z

Solution for -42=-8z equation:

Simplifying
-42 = -8z

Solving
-42 = -8z

Solving for variable 'z'.

Move all terms containing z to the left, all other terms to the right.

Add '8z' to each side of the equation.
-42 + 8z = -8z + 8z

Combine like terms: -8z + 8z = 0
-42 + 8z = 0

Add '42' to each side of the equation.
-42 + 42 + 8z = 0 + 42

Combine like terms: -42 + 42 = 0
0 + 8z = 0 + 42
8z = 0 + 42

Combine like terms: 0 + 42 = 42
8z = 42

Divide each side by '8'.
z = 5.25

Simplifying
z = 5.25