2d-3D-9=2d+3

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Solution for 2d-3D-9=2d+3 equation:


Simplifying
2d + -3D + -9 = 2d + 3

Reorder the terms:
-9 + -3D + 2d = 2d + 3

Reorder the terms:
-9 + -3D + 2d = 3 + 2d

Add '-2d' to each side of the equation.
-9 + -3D + 2d + -2d = 3 + 2d + -2d

Combine like terms: 2d + -2d = 0
-9 + -3D + 0 = 3 + 2d + -2d
-9 + -3D = 3 + 2d + -2d

Combine like terms: 2d + -2d = 0
-9 + -3D = 3 + 0
-9 + -3D = 3

Solving
-9 + -3D = 3

Solving for variable 'D'.

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

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

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

Combine like terms: 3 + 9 = 12
-3D = 12

Divide each side by '-3'.
D = -4

Simplifying
D = -4

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