-6d-9=9-3d

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Solution for -6d-9=9-3d equation:


Simplifying
-6d + -9 = 9 + -3d

Reorder the terms:
-9 + -6d = 9 + -3d

Solving
-9 + -6d = 9 + -3d

Solving for variable 'd'.

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

Add '3d' to each side of the equation.
-9 + -6d + 3d = 9 + -3d + 3d

Combine like terms: -6d + 3d = -3d
-9 + -3d = 9 + -3d + 3d

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

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

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

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

Divide each side by '-3'.
d = -6

Simplifying
d = -6

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