3d+8=9d-2(2d-1)

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Solution for 3d+8=9d-2(2d-1) equation:


Simplifying
3d + 8 = 9d + -2(2d + -1)

Reorder the terms:
8 + 3d = 9d + -2(2d + -1)

Reorder the terms:
8 + 3d = 9d + -2(-1 + 2d)
8 + 3d = 9d + (-1 * -2 + 2d * -2)
8 + 3d = 9d + (2 + -4d)

Reorder the terms:
8 + 3d = 2 + 9d + -4d

Combine like terms: 9d + -4d = 5d
8 + 3d = 2 + 5d

Solving
8 + 3d = 2 + 5d

Solving for variable 'd'.

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

Add '-5d' to each side of the equation.
8 + 3d + -5d = 2 + 5d + -5d

Combine like terms: 3d + -5d = -2d
8 + -2d = 2 + 5d + -5d

Combine like terms: 5d + -5d = 0
8 + -2d = 2 + 0
8 + -2d = 2

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

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

Combine like terms: 2 + -8 = -6
-2d = -6

Divide each side by '-2'.
d = 3

Simplifying
d = 3

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