(q-9)*6=42

Solution for (q-9)*6=42 equation:

Simplifying
(q + -9) * 6 = 42

Reorder the terms:
(-9 + q) * 6 = 42

Reorder the terms for easier multiplication:
6(-9 + q) = 42
(-9 * 6 + q * 6) = 42
(-54 + 6q) = 42

Solving
-54 + 6q = 42

Solving for variable 'q'.

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

Add '54' to each side of the equation.
-54 + 54 + 6q = 42 + 54

Combine like terms: -54 + 54 = 0
0 + 6q = 42 + 54
6q = 42 + 54

Combine like terms: 42 + 54 = 96
6q = 96

Divide each side by '6'.
q = 16

Simplifying
q = 16