D+40=50

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Solution for D+40=50 equation: 


Simplifying
D + 40 = 50

Reorder the terms:
40 + D = 50

Solving
40 + D = 50

Solving for variable 'D'.

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

Add '-40' to each side of the equation.
40 + -40 + D = 50 + -40

Combine like terms: 40 + -40 = 0
0 + D = 50 + -40
D = 50 + -40

Combine like terms: 50 + -40 = 10
D = 10

Simplifying
D = 10

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