9+q=6q-21

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Solution for 9+q=6q-21 equation:


Simplifying
9 + q = 6q + -21

Reorder the terms:
9 + q = -21 + 6q

Solving
9 + q = -21 + 6q

Solving for variable 'q'.

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

Add '-6q' to each side of the equation.
9 + q + -6q = -21 + 6q + -6q

Combine like terms: q + -6q = -5q
9 + -5q = -21 + 6q + -6q

Combine like terms: 6q + -6q = 0
9 + -5q = -21 + 0
9 + -5q = -21

Add '-9' to each side of the equation.
9 + -9 + -5q = -21 + -9

Combine like terms: 9 + -9 = 0
0 + -5q = -21 + -9
-5q = -21 + -9

Combine like terms: -21 + -9 = -30
-5q = -30

Divide each side by '-5'.
q = 6

Simplifying
q = 6

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