(8-d)+81=100

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Solution for (8-d)+81=100 equation:


Simplifying
(8 + -1d) + 81 = 100

Remove parenthesis around (8 + -1d)
8 + -1d + 81 = 100

Reorder the terms:
8 + 81 + -1d = 100

Combine like terms: 8 + 81 = 89
89 + -1d = 100

Solving
89 + -1d = 100

Solving for variable 'd'.

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

Add '-89' to each side of the equation.
89 + -89 + -1d = 100 + -89

Combine like terms: 89 + -89 = 0
0 + -1d = 100 + -89
-1d = 100 + -89

Combine like terms: 100 + -89 = 11
-1d = 11

Divide each side by '-1'.
d = -11

Simplifying
d = -11

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