6+4d=d-9

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Solution for 6+4d=d-9 equation:


Simplifying
6 + 4d = d + -9

Reorder the terms:
6 + 4d = -9 + d

Solving
6 + 4d = -9 + 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.
6 + 4d + -1d = -9 + d + -1d

Combine like terms: 4d + -1d = 3d
6 + 3d = -9 + d + -1d

Combine like terms: d + -1d = 0
6 + 3d = -9 + 0
6 + 3d = -9

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

Combine like terms: 6 + -6 = 0
0 + 3d = -9 + -6
3d = -9 + -6

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

Divide each side by '3'.
d = -5

Simplifying
d = -5

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