-8-7d=d

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Solution for -8-7d=d equation:


Simplifying
-8 + -7d = d

Solving
-8 + -7d = d

Solving for variable 'd'.

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

Add '-1d' to each side of the equation.
-8 + -7d + -1d = d + -1d

Combine like terms: -7d + -1d = -8d
-8 + -8d = d + -1d

Combine like terms: d + -1d = 0
-8 + -8d = 0

Add '8' to each side of the equation.
-8 + 8 + -8d = 0 + 8

Combine like terms: -8 + 8 = 0
0 + -8d = 0 + 8
-8d = 0 + 8

Combine like terms: 0 + 8 = 8
-8d = 8

Divide each side by '-8'.
d = -1

Simplifying
d = -1

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