D*-3+-9=-18

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Solution for D*-3+-9=-18 equation: 


Simplifying
D * -3 + -9 = -18

Reorder the terms for easier multiplication:
-3D + -9 = -18

Reorder the terms:
-9 + -3D = -18

Solving
-9 + -3D = -18

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 = -18 + 9

Combine like terms: -9 + 9 = 0
0 + -3D = -18 + 9
-3D = -18 + 9

Combine like terms: -18 + 9 = -9
-3D = -9

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

Simplifying
D = 3

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