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

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


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

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

Reorder the terms:
3 = -6 + -5 + 5D + -3D

Combine like terms: -6 + -5 = -11
3 = -11 + 5D + -3D

Combine like terms: 5D + -3D = 2D
3 = -11 + 2D

Solving
3 = -11 + 2D

Solving for variable 'D'.

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

Add '-2D' to each side of the equation.
3 + -2D = -11 + 2D + -2D

Combine like terms: 2D + -2D = 0
3 + -2D = -11 + 0
3 + -2D = -11

Add '-3' to each side of the equation.
3 + -3 + -2D = -11 + -3

Combine like terms: 3 + -3 = 0
0 + -2D = -11 + -3
-2D = -11 + -3

Combine like terms: -11 + -3 = -14
-2D = -14

Divide each side by '-2'.
D = 7

Simplifying
D = 7

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