-d+8=-15

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Solution for -d+8=-15 equation: 


Simplifying
-1d + 8 = -15

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

Solving
8 + -1d = -15

Solving for variable 'd'.

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

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

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

Combine like terms: -15 + -8 = -23
-1d = -23

Divide each side by '-1'.
d = 23

Simplifying
d = 23

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