9d-1=8d-15

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Solution for 9d-1=8d-15 equation:


Simplifying
9d + -1 = 8d + -15

Reorder the terms:
-1 + 9d = 8d + -15

Reorder the terms:
-1 + 9d = -15 + 8d

Solving
-1 + 9d = -15 + 8d

Solving for variable 'd'.

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

Add '-8d' to each side of the equation.
-1 + 9d + -8d = -15 + 8d + -8d

Combine like terms: 9d + -8d = 1d
-1 + 1d = -15 + 8d + -8d

Combine like terms: 8d + -8d = 0
-1 + 1d = -15 + 0
-1 + 1d = -15

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

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

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

Divide each side by '1'.
d = -14

Simplifying
d = -14

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