3d=d+9+6

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


Simplifying
3d = d + 9 + 6

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

Combine like terms: 9 + 6 = 15
3d = 15 + d

Solving
3d = 15 + 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.
3d + -1d = 15 + d + -1d

Combine like terms: 3d + -1d = 2d
2d = 15 + d + -1d

Combine like terms: d + -1d = 0
2d = 15 + 0
2d = 15

Divide each side by '2'.
d = 7.5

Simplifying
d = 7.5

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