4c-9=c+9

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Solution for 4c-9=c+9 equation:


Simplifying
4c + -9 = c + 9

Reorder the terms:
-9 + 4c = c + 9

Reorder the terms:
-9 + 4c = 9 + c

Solving
-9 + 4c = 9 + 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.
-9 + 4c + -1c = 9 + c + -1c

Combine like terms: 4c + -1c = 3c
-9 + 3c = 9 + c + -1c

Combine like terms: c + -1c = 0
-9 + 3c = 9 + 0
-9 + 3c = 9

Add '9' to each side of the equation.
-9 + 9 + 3c = 9 + 9

Combine like terms: -9 + 9 = 0
0 + 3c = 9 + 9
3c = 9 + 9

Combine like terms: 9 + 9 = 18
3c = 18

Divide each side by '3'.
c = 6

Simplifying
c = 6

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