7685=645-5d

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Solution for 7685=645-5d equation:


Simplifying
7685 = 645 + -5d

Solving
7685 = 645 + -5d

Solving for variable 'd'.

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

Add '5d' to each side of the equation.
7685 + 5d = 645 + -5d + 5d

Combine like terms: -5d + 5d = 0
7685 + 5d = 645 + 0
7685 + 5d = 645

Add '-7685' to each side of the equation.
7685 + -7685 + 5d = 645 + -7685

Combine like terms: 7685 + -7685 = 0
0 + 5d = 645 + -7685
5d = 645 + -7685

Combine like terms: 645 + -7685 = -7040
5d = -7040

Divide each side by '5'.
d = -1408

Simplifying
d = -1408

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