D+7=1

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Solution for D+7=1 equation: 


Simplifying
D + 7 = 1

Reorder the terms:
7 + D = 1

Solving
7 + D = 1

Solving for variable 'D'.

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

Add '-7' to each side of the equation.
7 + -7 + D = 1 + -7

Combine like terms: 7 + -7 = 0
0 + D = 1 + -7
D = 1 + -7

Combine like terms: 1 + -7 = -6
D = -6

Simplifying
D = -6

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