9c+5=c+21

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Solution for 9c+5=c+21 equation:


Simplifying
9c + 5 = c + 21

Reorder the terms:
5 + 9c = c + 21

Reorder the terms:
5 + 9c = 21 + c

Solving
5 + 9c = 21 + c

Solving for variable 'c'.

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

Add '-1c' to each side of the equation.
5 + 9c + -1c = 21 + c + -1c

Combine like terms: 9c + -1c = 8c
5 + 8c = 21 + c + -1c

Combine like terms: c + -1c = 0
5 + 8c = 21 + 0
5 + 8c = 21

Add '-5' to each side of the equation.
5 + -5 + 8c = 21 + -5

Combine like terms: 5 + -5 = 0
0 + 8c = 21 + -5
8c = 21 + -5

Combine like terms: 21 + -5 = 16
8c = 16

Divide each side by '8'.
c = 2

Simplifying
c = 2

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