3c+9=9c-9

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Solution for 3c+9=9c-9 equation:


Simplifying
3c + 9 = 9c + -9

Reorder the terms:
9 + 3c = 9c + -9

Reorder the terms:
9 + 3c = -9 + 9c

Solving
9 + 3c = -9 + 9c

Solving for variable 'c'.

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

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

Combine like terms: 3c + -9c = -6c
9 + -6c = -9 + 9c + -9c

Combine like terms: 9c + -9c = 0
9 + -6c = -9 + 0
9 + -6c = -9

Add '-9' to each side of the equation.
9 + -9 + -6c = -9 + -9

Combine like terms: 9 + -9 = 0
0 + -6c = -9 + -9
-6c = -9 + -9

Combine like terms: -9 + -9 = -18
-6c = -18

Divide each side by '-6'.
c = 3

Simplifying
c = 3

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