d+259=-8d+7

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Solution for d+259=-8d+7 equation:


Simplifying
d + 259 = -8d + 7

Reorder the terms:
259 + d = -8d + 7

Reorder the terms:
259 + d = 7 + -8d

Solving
259 + d = 7 + -8d

Solving for variable 'd'.

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

Add '8d' to each side of the equation.
259 + d + 8d = 7 + -8d + 8d

Combine like terms: d + 8d = 9d
259 + 9d = 7 + -8d + 8d

Combine like terms: -8d + 8d = 0
259 + 9d = 7 + 0
259 + 9d = 7

Add '-259' to each side of the equation.
259 + -259 + 9d = 7 + -259

Combine like terms: 259 + -259 = 0
0 + 9d = 7 + -259
9d = 7 + -259

Combine like terms: 7 + -259 = -252
9d = -252

Divide each side by '9'.
d = -28

Simplifying
d = -28

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