=3(-2C-5D)+2D-5(D-3C)

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Solution for =3(-2C-5D)+2D-5(D-3C) equation:


Simplifying
0 = 3(-2C + -5D) + 2D + -5(D + -3C)
0 = (-2C * 3 + -5D * 3) + 2D + -5(D + -3C)
0 = (-6C + -15D) + 2D + -5(D + -3C)

Reorder the terms:
0 = -6C + -15D + 2D + -5(-3C + D)
0 = -6C + -15D + 2D + (-3C * -5 + D * -5)
0 = -6C + -15D + 2D + (15C + -5D)

Reorder the terms:
0 = -6C + 15C + -15D + 2D + -5D

Combine like terms: -6C + 15C = 9C
0 = 9C + -15D + 2D + -5D

Combine like terms: -15D + 2D = -13D
0 = 9C + -13D + -5D

Combine like terms: -13D + -5D = -18D
0 = 9C + -18D

Solving
0 = 9C + -18D

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.
0 + -9C = 9C + -9C + -18D
Remove the zero:
-9C = 9C + -9C + -18D

Combine like terms: 9C + -9C = 0
-9C = 0 + -18D
-9C = -18D

Divide each side by '-9'.
C = 2D

Simplifying
C = 2D

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