3c+9d-2(6c-6d)=

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Solution for 3c+9d-2(6c-6d)= equation:


Simplifying
3c + 9d + -2(6c + -6d) = 0
3c + 9d + (6c * -2 + -6d * -2) = 0
3c + 9d + (-12c + 12d) = 0

Reorder the terms:
3c + -12c + 9d + 12d = 0

Combine like terms: 3c + -12c = -9c
-9c + 9d + 12d = 0

Combine like terms: 9d + 12d = 21d
-9c + 21d = 0

Solving
-9c + 21d = 0

Solving for variable 'c'.

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

Add '-21d' to each side of the equation.
-9c + 21d + -21d = 0 + -21d

Combine like terms: 21d + -21d = 0
-9c + 0 = 0 + -21d
-9c = 0 + -21d
Remove the zero:
-9c = -21d

Divide each side by '-9'.
c = 2.333333333d

Simplifying
c = 2.333333333d

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