D+5+D=19

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Solution for D+5+D=19 equation: 


Simplifying
D + 5 + D = 19

Reorder the terms:
5 + D + D = 19

Combine like terms: D + D = 2D
5 + 2D = 19

Solving
5 + 2D = 19

Solving for variable 'D'.

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

Add '-5' to each side of the equation.
5 + -5 + 2D = 19 + -5

Combine like terms: 5 + -5 = 0
0 + 2D = 19 + -5
2D = 19 + -5

Combine like terms: 19 + -5 = 14
2D = 14

Divide each side by '2'.
D = 7

Simplifying
D = 7

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