9d+4=31

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Solution for 9d+4=31 equation: 


Simplifying
9d + 4 = 31

Reorder the terms:
4 + 9d = 31

Solving
4 + 9d = 31

Solving for variable 'd'.

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

Add '-4' to each side of the equation.
4 + -4 + 9d = 31 + -4

Combine like terms: 4 + -4 = 0
0 + 9d = 31 + -4
9d = 31 + -4

Combine like terms: 31 + -4 = 27
9d = 27

Divide each side by '9'.
d = 3

Simplifying
d = 3

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