18d-9d+4=85

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Solution for 18d-9d+4=85 equation: 


Simplifying
18d + -9d + 4 = 85

Reorder the terms:
4 + 18d + -9d = 85

Combine like terms: 18d + -9d = 9d
4 + 9d = 85

Solving
4 + 9d = 85

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 = 85 + -4

Combine like terms: 4 + -4 = 0
0 + 9d = 85 + -4
9d = 85 + -4

Combine like terms: 85 + -4 = 81
9d = 81

Divide each side by '9'.
d = 9

Simplifying
d = 9

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