d-21.4=8.9

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Solution for d-21.4=8.9 equation: 


Simplifying
d + -21.4 = 8.9

Reorder the terms:
-21.4 + d = 8.9

Solving
-21.4 + d = 8.9

Solving for variable 'd'.

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

Add '21.4' to each side of the equation.
-21.4 + 21.4 + d = 8.9 + 21.4

Combine like terms: -21.4 + 21.4 = 0.0
0.0 + d = 8.9 + 21.4
d = 8.9 + 21.4

Combine like terms: 8.9 + 21.4 = 30.3
d = 30.3

Simplifying
d = 30.3

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