2c-1=-21

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Solution for 2c-1=-21 equation: 


Simplifying
2c + -1 = -21

Reorder the terms:
-1 + 2c = -21

Solving
-1 + 2c = -21

Solving for variable 'c'.

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

Add '1' to each side of the equation.
-1 + 1 + 2c = -21 + 1

Combine like terms: -1 + 1 = 0
0 + 2c = -21 + 1
2c = -21 + 1

Combine like terms: -21 + 1 = -20
2c = -20

Divide each side by '2'.
c = -10

Simplifying
c = -10

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