9(-3c-4)=81

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Solution for 9(-3c-4)=81 equation: 


Simplifying
9(-3c + -4) = 81

Reorder the terms:
9(-4 + -3c) = 81
(-4 * 9 + -3c * 9) = 81
(-36 + -27c) = 81

Solving
-36 + -27c = 81

Solving for variable 'c'.

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

Add '36' to each side of the equation.
-36 + 36 + -27c = 81 + 36

Combine like terms: -36 + 36 = 0
0 + -27c = 81 + 36
-27c = 81 + 36

Combine like terms: 81 + 36 = 117
-27c = 117

Divide each side by '-27'.
c = -4.333333333

Simplifying
c = -4.333333333

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