D+4=7-d-1

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Solution for D+4=7-d-1 equation:


Simplifying
D + 4 = 7 + -1d + -1

Reorder the terms:
4 + D = 7 + -1d + -1

Reorder the terms:
4 + D = 7 + -1 + -1d

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

Solving
4 + D = 6 + -1d

Solving for variable 'D'.

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

Add '-4' to each side of the equation.
4 + -4 + D = 6 + -4 + -1d

Combine like terms: 4 + -4 = 0
0 + D = 6 + -4 + -1d
D = 6 + -4 + -1d

Combine like terms: 6 + -4 = 2
D = 2 + -1d

Simplifying
D = 2 + -1d

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