5c=21-2c

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Solution for 5c=21-2c equation: 


Simplifying
5c = 21 + -2c

Solving
5c = 21 + -2c

Solving for variable 'c'.

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

Add '2c' to each side of the equation.
5c + 2c = 21 + -2c + 2c

Combine like terms: 5c + 2c = 7c
7c = 21 + -2c + 2c

Combine like terms: -2c + 2c = 0
7c = 21 + 0
7c = 21

Divide each side by '7'.
c = 3

Simplifying
c = 3

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