d+8.1=15.9

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Solution for d+8.1=15.9 equation: 


Simplifying
d + 8.1 = 15.9

Reorder the terms:
8.1 + d = 15.9

Solving
8.1 + d = 15.9

Solving for variable 'd'.

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

Add '-8.1' to each side of the equation.
8.1 + -8.1 + d = 15.9 + -8.1

Combine like terms: 8.1 + -8.1 = 0.0
0.0 + d = 15.9 + -8.1
d = 15.9 + -8.1

Combine like terms: 15.9 + -8.1 = 7.8
d = 7.8

Simplifying
d = 7.8

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