2d+8+4d=-20

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Solution for 2d+8+4d=-20 equation:


Simplifying
2d + 8 + 4d = -20

Reorder the terms:
8 + 2d + 4d = -20

Combine like terms: 2d + 4d = 6d
8 + 6d = -20

Solving
8 + 6d = -20

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 + 6d = -20 + -8

Combine like terms: 8 + -8 = 0
0 + 6d = -20 + -8
6d = -20 + -8

Combine like terms: -20 + -8 = -28
6d = -28

Divide each side by '6'.
d = -4.666666667

Simplifying
d = -4.666666667

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