5d-8=9d+12

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Solution for 5d-8=9d+12 equation:


Simplifying
5d + -8 = 9d + 12

Reorder the terms:
-8 + 5d = 9d + 12

Reorder the terms:
-8 + 5d = 12 + 9d

Solving
-8 + 5d = 12 + 9d

Solving for variable 'd'.

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

Add '-9d' to each side of the equation.
-8 + 5d + -9d = 12 + 9d + -9d

Combine like terms: 5d + -9d = -4d
-8 + -4d = 12 + 9d + -9d

Combine like terms: 9d + -9d = 0
-8 + -4d = 12 + 0
-8 + -4d = 12

Add '8' to each side of the equation.
-8 + 8 + -4d = 12 + 8

Combine like terms: -8 + 8 = 0
0 + -4d = 12 + 8
-4d = 12 + 8

Combine like terms: 12 + 8 = 20
-4d = 20

Divide each side by '-4'.
d = -5

Simplifying
d = -5

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