18q+21=9q-11

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Solution for 18q+21=9q-11 equation:


Simplifying
18q + 21 = 9q + -11

Reorder the terms:
21 + 18q = 9q + -11

Reorder the terms:
21 + 18q = -11 + 9q

Solving
21 + 18q = -11 + 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.
21 + 18q + -9q = -11 + 9q + -9q

Combine like terms: 18q + -9q = 9q
21 + 9q = -11 + 9q + -9q

Combine like terms: 9q + -9q = 0
21 + 9q = -11 + 0
21 + 9q = -11

Add '-21' to each side of the equation.
21 + -21 + 9q = -11 + -21

Combine like terms: 21 + -21 = 0
0 + 9q = -11 + -21
9q = -11 + -21

Combine like terms: -11 + -21 = -32
9q = -32

Divide each side by '9'.
q = -3.555555556

Simplifying
q = -3.555555556

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