-d-5=-12

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Solution for -d-5=-12 equation: 


Simplifying
-1d + -5 = -12

Reorder the terms:
-5 + -1d = -12

Solving
-5 + -1d = -12

Solving for variable 'd'.

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

Add '5' to each side of the equation.
-5 + 5 + -1d = -12 + 5

Combine like terms: -5 + 5 = 0
0 + -1d = -12 + 5
-1d = -12 + 5

Combine like terms: -12 + 5 = -7
-1d = -7

Divide each side by '-1'.
d = 7

Simplifying
d = 7

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