31=12d-7

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Solution for 31=12d-7 equation:


Simplifying
31 = 12d + -7

Reorder the terms:
31 = -7 + 12d

Solving
31 = -7 + 12d

Solving for variable 'd'.

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

Add '-12d' to each side of the equation.
31 + -12d = -7 + 12d + -12d

Combine like terms: 12d + -12d = 0
31 + -12d = -7 + 0
31 + -12d = -7

Add '-31' to each side of the equation.
31 + -31 + -12d = -7 + -31

Combine like terms: 31 + -31 = 0
0 + -12d = -7 + -31
-12d = -7 + -31

Combine like terms: -7 + -31 = -38
-12d = -38

Divide each side by '-12'.
d = 3.166666667

Simplifying
d = 3.166666667

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