15-18q-12q=9

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Solution for 15-18q-12q=9 equation: 


Simplifying
15 + -18q + -12q = 9

Combine like terms: -18q + -12q = -30q
15 + -30q = 9

Solving
15 + -30q = 9

Solving for variable 'q'.

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

Add '-15' to each side of the equation.
15 + -15 + -30q = 9 + -15

Combine like terms: 15 + -15 = 0
0 + -30q = 9 + -15
-30q = 9 + -15

Combine like terms: 9 + -15 = -6
-30q = -6

Divide each side by '-30'.
q = 0.2

Simplifying
q = 0.2

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