(q-9)*3=30

Solution for (q-9)*3=30 equation:

Simplifying
(q + -9) * 3 = 30

Reorder the terms:
(-9 + q) * 3 = 30

Reorder the terms for easier multiplication:
3(-9 + q) = 30
(-9 * 3 + q * 3) = 30
(-27 + 3q) = 30

Solving
-27 + 3q = 30

Solving for variable 'q'.

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

Add '27' to each side of the equation.
-27 + 27 + 3q = 30 + 27

Combine like terms: -27 + 27 = 0
0 + 3q = 30 + 27
3q = 30 + 27

Combine like terms: 30 + 27 = 57
3q = 57

Divide each side by '3'.
q = 19

Simplifying
q = 19