-9(6c+3)=21

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Solution for -9(6c+3)=21 equation:


Simplifying
-9(6c + 3) = 21

Reorder the terms:
-9(3 + 6c) = 21
(3 * -9 + 6c * -9) = 21
(-27 + -54c) = 21

Solving
-27 + -54c = 21

Solving for variable 'c'.

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

Add '27' to each side of the equation.
-27 + 27 + -54c = 21 + 27

Combine like terms: -27 + 27 = 0
0 + -54c = 21 + 27
-54c = 21 + 27

Combine like terms: 21 + 27 = 48
-54c = 48

Divide each side by '-54'.
c = -0.8888888889

Simplifying
c = -0.8888888889

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