-(-c-9)=-1

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Solution for -(-c-9)=-1 equation: 


Simplifying
-1(-1c + -9) = -1

Reorder the terms:
-1(-9 + -1c) = -1
(-9 * -1 + -1c * -1) = -1
(9 + 1c) = -1

Solving
9 + 1c = -1

Solving for variable 'c'.

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

Add '-9' to each side of the equation.
9 + -9 + 1c = -1 + -9

Combine like terms: 9 + -9 = 0
0 + 1c = -1 + -9
1c = -1 + -9

Combine like terms: -1 + -9 = -10
1c = -10

Divide each side by '1'.
c = -10

Simplifying
c = -10

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