9z+6-4z=42-4z

Solution for 9z+6-4z=42-4z equation:

Simplifying
9z + 6 + -4z = 42 + -4z

Reorder the terms:
6 + 9z + -4z = 42 + -4z

Combine like terms: 9z + -4z = 5z
6 + 5z = 42 + -4z

Solving
6 + 5z = 42 + -4z

Solving for variable 'z'.

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

Add '4z' to each side of the equation.
6 + 5z + 4z = 42 + -4z + 4z

Combine like terms: 5z + 4z = 9z
6 + 9z = 42 + -4z + 4z

Combine like terms: -4z + 4z = 0
6 + 9z = 42 + 0
6 + 9z = 42

Add '-6' to each side of the equation.
6 + -6 + 9z = 42 + -6

Combine like terms: 6 + -6 = 0
0 + 9z = 42 + -6
9z = 42 + -6

Combine like terms: 42 + -6 = 36
9z = 36

Divide each side by '9'.
z = 4

Simplifying
z = 4