c-3=-21

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Solution for c-3=-21 equation: 


Simplifying
c + -3 = -21

Reorder the terms:
-3 + c = -21

Solving
-3 + c = -21

Solving for variable 'c'.

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

Add '3' to each side of the equation.
-3 + 3 + c = -21 + 3

Combine like terms: -3 + 3 = 0
0 + c = -21 + 3
c = -21 + 3

Combine like terms: -21 + 3 = -18
c = -18

Simplifying
c = -18

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