8=D-12

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Solution for 8=D-12 equation:


Simplifying
8 = D + -12

Reorder the terms:
8 = -12 + D

Solving
8 = -12 + D

Solving for variable 'D'.

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

Add '-1D' to each side of the equation.
8 + -1D = -12 + D + -1D

Combine like terms: D + -1D = 0
8 + -1D = -12 + 0
8 + -1D = -12

Add '-8' to each side of the equation.
8 + -8 + -1D = -12 + -8

Combine like terms: 8 + -8 = 0
0 + -1D = -12 + -8
-1D = -12 + -8

Combine like terms: -12 + -8 = -20
-1D = -20

Divide each side by '-1'.
D = 20

Simplifying
D = 20

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