2d+d+8=2d-4

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


Simplifying
2d + d + 8 = 2d + -4

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

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

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

Solving
8 + 3d = -4 + 2d

Solving for variable 'd'.

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

Add '-2d' to each side of the equation.
8 + 3d + -2d = -4 + 2d + -2d

Combine like terms: 3d + -2d = 1d
8 + 1d = -4 + 2d + -2d

Combine like terms: 2d + -2d = 0
8 + 1d = -4 + 0
8 + 1d = -4

Add '-8' to each side of the equation.
8 + -8 + 1d = -4 + -8

Combine like terms: 8 + -8 = 0
0 + 1d = -4 + -8
1d = -4 + -8

Combine like terms: -4 + -8 = -12
1d = -12

Divide each side by '1'.
d = -12

Simplifying
d = -12

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