-3C-12=15+C

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Solution for -3C-12=15+C equation:


Simplifying
-3C + -12 = 15 + C

Reorder the terms:
-12 + -3C = 15 + C

Solving
-12 + -3C = 15 + 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.
-12 + -3C + -1C = 15 + C + -1C

Combine like terms: -3C + -1C = -4C
-12 + -4C = 15 + C + -1C

Combine like terms: C + -1C = 0
-12 + -4C = 15 + 0
-12 + -4C = 15

Add '12' to each side of the equation.
-12 + 12 + -4C = 15 + 12

Combine like terms: -12 + 12 = 0
0 + -4C = 15 + 12
-4C = 15 + 12

Combine like terms: 15 + 12 = 27
-4C = 27

Divide each side by '-4'.
C = -6.75

Simplifying
C = -6.75

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