1d-12=4d-20

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Solution for 1d-12=4d-20 equation:


Simplifying
1d + -12 = 4d + -20

Reorder the terms:
-12 + 1d = 4d + -20

Reorder the terms:
-12 + 1d = -20 + 4d

Solving
-12 + 1d = -20 + 4d

Solving for variable 'd'.

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

Add '-4d' to each side of the equation.
-12 + 1d + -4d = -20 + 4d + -4d

Combine like terms: 1d + -4d = -3d
-12 + -3d = -20 + 4d + -4d

Combine like terms: 4d + -4d = 0
-12 + -3d = -20 + 0
-12 + -3d = -20

Add '12' to each side of the equation.
-12 + 12 + -3d = -20 + 12

Combine like terms: -12 + 12 = 0
0 + -3d = -20 + 12
-3d = -20 + 12

Combine like terms: -20 + 12 = -8
-3d = -8

Divide each side by '-3'.
d = 2.666666667

Simplifying
d = 2.666666667

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