3d-d+8-9d=0

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Solution for 3d-d+8-9d=0 equation:


Simplifying
3d + -1d + 8 + -9d = 0

Reorder the terms:
8 + 3d + -1d + -9d = 0

Combine like terms: 3d + -1d = 2d
8 + 2d + -9d = 0

Combine like terms: 2d + -9d = -7d
8 + -7d = 0

Solving
8 + -7d = 0

Solving for variable 'd'.

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

Add '-8' to each side of the equation.
8 + -8 + -7d = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -7d = 0 + -8
-7d = 0 + -8

Combine like terms: 0 + -8 = -8
-7d = -8

Divide each side by '-7'.
d = 1.142857143

Simplifying
d = 1.142857143

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