3d+8=20+d

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Solution for 3d+8=20+d equation:


Simplifying
3d + 8 = 20 + d

Reorder the terms:
8 + 3d = 20 + d

Solving
8 + 3d = 20 + d

Solving for variable 'd'.

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

Add '-1d' to each side of the equation.
8 + 3d + -1d = 20 + d + -1d

Combine like terms: 3d + -1d = 2d
8 + 2d = 20 + d + -1d

Combine like terms: d + -1d = 0
8 + 2d = 20 + 0
8 + 2d = 20

Add '-8' to each side of the equation.
8 + -8 + 2d = 20 + -8

Combine like terms: 8 + -8 = 0
0 + 2d = 20 + -8
2d = 20 + -8

Combine like terms: 20 + -8 = 12
2d = 12

Divide each side by '2'.
d = 6

Simplifying
d = 6

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