7d-1=-15

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Solution for 7d-1=-15 equation: 


Simplifying
7d + -1 = -15

Reorder the terms:
-1 + 7d = -15

Solving
-1 + 7d = -15

Solving for variable 'd'.

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

Add '1' to each side of the equation.
-1 + 1 + 7d = -15 + 1

Combine like terms: -1 + 1 = 0
0 + 7d = -15 + 1
7d = -15 + 1

Combine like terms: -15 + 1 = -14
7d = -14

Divide each side by '7'.
d = -2

Simplifying
d = -2

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