7d+d+2d+4=5d

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Solution for 7d+d+2d+4=5d equation:


Simplifying
7d + d + 2d + 4 = 5d

Reorder the terms:
4 + 7d + d + 2d = 5d

Combine like terms: 7d + d = 8d
4 + 8d + 2d = 5d

Combine like terms: 8d + 2d = 10d
4 + 10d = 5d

Solving
4 + 10d = 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.
4 + 10d + -5d = 5d + -5d

Combine like terms: 10d + -5d = 5d
4 + 5d = 5d + -5d

Combine like terms: 5d + -5d = 0
4 + 5d = 0

Add '-4' to each side of the equation.
4 + -4 + 5d = 0 + -4

Combine like terms: 4 + -4 = 0
0 + 5d = 0 + -4
5d = 0 + -4

Combine like terms: 0 + -4 = -4
5d = -4

Divide each side by '5'.
d = -0.8

Simplifying
d = -0.8

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