9d-12=d

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Solution for 9d-12=d equation:


Simplifying
9d + -12 = d

Reorder the terms:
-12 + 9d = d

Solving
-12 + 9d = 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.
-12 + 9d + -1d = d + -1d

Combine like terms: 9d + -1d = 8d
-12 + 8d = d + -1d

Combine like terms: d + -1d = 0
-12 + 8d = 0

Add '12' to each side of the equation.
-12 + 12 + 8d = 0 + 12

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

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

Divide each side by '8'.
d = 1.5

Simplifying
d = 1.5

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