9*(11-c)=81

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Solution for 9*(11-c)=81 equation: 


Simplifying
9(11 + -1c) = 81
(11 * 9 + -1c * 9) = 81
(99 + -9c) = 81

Solving
99 + -9c = 81

Solving for variable 'c'.

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

Add '-99' to each side of the equation.
99 + -99 + -9c = 81 + -99

Combine like terms: 99 + -99 = 0
0 + -9c = 81 + -99
-9c = 81 + -99

Combine like terms: 81 + -99 = -18
-9c = -18

Divide each side by '-9'.
c = 2

Simplifying
c = 2

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