-(c-8)=-21

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Solution for -(c-8)=-21 equation: 


Simplifying
-1(c + -8) = -21

Reorder the terms:
-1(-8 + c) = -21
(-8 * -1 + c * -1) = -21
(8 + -1c) = -21

Solving
8 + -1c = -21

Solving for variable 'c'.

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

Add '-8' to each side of the equation.
8 + -8 + -1c = -21 + -8

Combine like terms: 8 + -8 = 0
0 + -1c = -21 + -8
-1c = -21 + -8

Combine like terms: -21 + -8 = -29
-1c = -29

Divide each side by '-1'.
c = 29

Simplifying
c = 29

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