3c+5=21-c

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Solution for 3c+5=21-c equation:


Simplifying
3c + 5 = 21 + -1c

Reorder the terms:
5 + 3c = 21 + -1c

Solving
5 + 3c = 21 + -1c

Solving for variable 'c'.

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

Add 'c' to each side of the equation.
5 + 3c + c = 21 + -1c + c

Combine like terms: 3c + c = 4c
5 + 4c = 21 + -1c + c

Combine like terms: -1c + c = 0
5 + 4c = 21 + 0
5 + 4c = 21

Add '-5' to each side of the equation.
5 + -5 + 4c = 21 + -5

Combine like terms: 5 + -5 = 0
0 + 4c = 21 + -5
4c = 21 + -5

Combine like terms: 21 + -5 = 16
4c = 16

Divide each side by '4'.
c = 4

Simplifying
c = 4

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