3d-1=d-8

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Solution for 3d-1=d-8 equation:


Simplifying
3d + -1 = d + -8

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

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

Solving
-1 + 3d = -8 + 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.
-1 + 3d + -1d = -8 + d + -1d

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

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

Add '1' to each side of the equation.
-1 + 1 + 2d = -8 + 1

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

Combine like terms: -8 + 1 = -7
2d = -7

Divide each side by '2'.
d = -3.5

Simplifying
d = -3.5

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