45=-3q+12q+9

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Solution for 45=-3q+12q+9 equation:


Simplifying
45 = -3q + 12q + 9

Reorder the terms:
45 = 9 + -3q + 12q

Combine like terms: -3q + 12q = 9q
45 = 9 + 9q

Solving
45 = 9 + 9q

Solving for variable 'q'.

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

Add '-9q' to each side of the equation.
45 + -9q = 9 + 9q + -9q

Combine like terms: 9q + -9q = 0
45 + -9q = 9 + 0
45 + -9q = 9

Add '-45' to each side of the equation.
45 + -45 + -9q = 9 + -45

Combine like terms: 45 + -45 = 0
0 + -9q = 9 + -45
-9q = 9 + -45

Combine like terms: 9 + -45 = -36
-9q = -36

Divide each side by '-9'.
q = 4

Simplifying
q = 4

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