2c-21=3-4c

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Solution for 2c-21=3-4c equation:


Simplifying
2c + -21 = 3 + -4c

Reorder the terms:
-21 + 2c = 3 + -4c

Solving
-21 + 2c = 3 + -4c

Solving for variable 'c'.

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

Add '4c' to each side of the equation.
-21 + 2c + 4c = 3 + -4c + 4c

Combine like terms: 2c + 4c = 6c
-21 + 6c = 3 + -4c + 4c

Combine like terms: -4c + 4c = 0
-21 + 6c = 3 + 0
-21 + 6c = 3

Add '21' to each side of the equation.
-21 + 21 + 6c = 3 + 21

Combine like terms: -21 + 21 = 0
0 + 6c = 3 + 21
6c = 3 + 21

Combine like terms: 3 + 21 = 24
6c = 24

Divide each side by '6'.
c = 4

Simplifying
c = 4

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