3d+8=5d+12

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Solution for 3d+8=5d+12 equation:


Simplifying
3d + 8 = 5d + 12

Reorder the terms:
8 + 3d = 5d + 12

Reorder the terms:
8 + 3d = 12 + 5d

Solving
8 + 3d = 12 + 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.
8 + 3d + -5d = 12 + 5d + -5d

Combine like terms: 3d + -5d = -2d
8 + -2d = 12 + 5d + -5d

Combine like terms: 5d + -5d = 0
8 + -2d = 12 + 0
8 + -2d = 12

Add '-8' to each side of the equation.
8 + -8 + -2d = 12 + -8

Combine like terms: 8 + -8 = 0
0 + -2d = 12 + -8
-2d = 12 + -8

Combine like terms: 12 + -8 = 4
-2d = 4

Divide each side by '-2'.
d = -2

Simplifying
d = -2

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