-9=D-2

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Solution for -9=D-2 equation:


Simplifying
-9 = D + -2

Reorder the terms:
-9 = -2 + D

Solving
-9 = -2 + 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.
-9 + -1D = -2 + D + -1D

Combine like terms: D + -1D = 0
-9 + -1D = -2 + 0
-9 + -1D = -2

Add '9' to each side of the equation.
-9 + 9 + -1D = -2 + 9

Combine like terms: -9 + 9 = 0
0 + -1D = -2 + 9
-1D = -2 + 9

Combine like terms: -2 + 9 = 7
-1D = 7

Divide each side by '-1'.
D = -7

Simplifying
D = -7

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