15+q(6)=-21

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Solution for 15+q(6)=-21 equation: 


Simplifying
15 + q(6) = -21

Reorder the terms for easier multiplication:
15 + 6q = -21

Solving
15 + 6q = -21

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 + 6q = -21 + -15

Combine like terms: 15 + -15 = 0
0 + 6q = -21 + -15
6q = -21 + -15

Combine like terms: -21 + -15 = -36
6q = -36

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

Simplifying
q = -6

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