D-19=20

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Solution for D-19=20 equation: 


Simplifying
D + -19 = 20

Reorder the terms:
-19 + D = 20

Solving
-19 + D = 20

Solving for variable 'D'.

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

Add '19' to each side of the equation.
-19 + 19 + D = 20 + 19

Combine like terms: -19 + 19 = 0
0 + D = 20 + 19
D = 20 + 19

Combine like terms: 20 + 19 = 39
D = 39

Simplifying
D = 39

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