3d+4d+5=6d+7d+8

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Solution for 3d+4d+5=6d+7d+8 equation:


Simplifying
3d + 4d + 5 = 6d + 7d + 8

Reorder the terms:
5 + 3d + 4d = 6d + 7d + 8

Combine like terms: 3d + 4d = 7d
5 + 7d = 6d + 7d + 8

Reorder the terms:
5 + 7d = 8 + 6d + 7d

Combine like terms: 6d + 7d = 13d
5 + 7d = 8 + 13d

Solving
5 + 7d = 8 + 13d

Solving for variable 'd'.

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

Add '-13d' to each side of the equation.
5 + 7d + -13d = 8 + 13d + -13d

Combine like terms: 7d + -13d = -6d
5 + -6d = 8 + 13d + -13d

Combine like terms: 13d + -13d = 0
5 + -6d = 8 + 0
5 + -6d = 8

Add '-5' to each side of the equation.
5 + -5 + -6d = 8 + -5

Combine like terms: 5 + -5 = 0
0 + -6d = 8 + -5
-6d = 8 + -5

Combine like terms: 8 + -5 = 3
-6d = 3

Divide each side by '-6'.
d = -0.5

Simplifying
d = -0.5

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