12d+15=-3

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Solution for 12d+15=-3 equation: 


Simplifying
12d + 15 = -3

Reorder the terms:
15 + 12d = -3

Solving
15 + 12d = -3

Solving for variable 'd'.

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

Add '-15' to each side of the equation.
15 + -15 + 12d = -3 + -15

Combine like terms: 15 + -15 = 0
0 + 12d = -3 + -15
12d = -3 + -15

Combine like terms: -3 + -15 = -18
12d = -18

Divide each side by '12'.
d = -1.5

Simplifying
d = -1.5

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