9+q=5q-21

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Solution for 9+q=5q-21 equation:


Simplifying
9 + q = 5q + -21

Reorder the terms:
9 + q = -21 + 5q

Solving
9 + q = -21 + 5q

Solving for variable 'q'.

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

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

Combine like terms: q + -5q = -4q
9 + -4q = -21 + 5q + -5q

Combine like terms: 5q + -5q = 0
9 + -4q = -21 + 0
9 + -4q = -21

Add '-9' to each side of the equation.
9 + -9 + -4q = -21 + -9

Combine like terms: 9 + -9 = 0
0 + -4q = -21 + -9
-4q = -21 + -9

Combine like terms: -21 + -9 = -30
-4q = -30

Divide each side by '-4'.
q = 7.5

Simplifying
q = 7.5

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