9d-1=5d-15

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Solution for 9d-1=5d-15 equation:


Simplifying
9d + -1 = 5d + -15

Reorder the terms:
-1 + 9d = 5d + -15

Reorder the terms:
-1 + 9d = -15 + 5d

Solving
-1 + 9d = -15 + 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.
-1 + 9d + -5d = -15 + 5d + -5d

Combine like terms: 9d + -5d = 4d
-1 + 4d = -15 + 5d + -5d

Combine like terms: 5d + -5d = 0
-1 + 4d = -15 + 0
-1 + 4d = -15

Add '1' to each side of the equation.
-1 + 1 + 4d = -15 + 1

Combine like terms: -1 + 1 = 0
0 + 4d = -15 + 1
4d = -15 + 1

Combine like terms: -15 + 1 = -14
4d = -14

Divide each side by '4'.
d = -3.5

Simplifying
d = -3.5

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