81=-1-2(-d+5)

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Solution for 81=-1-2(-d+5) equation:


Simplifying
81 = -1 + -2(-1d + 5)

Reorder the terms:
81 = -1 + -2(5 + -1d)
81 = -1 + (5 * -2 + -1d * -2)
81 = -1 + (-10 + 2d)

Combine like terms: -1 + -10 = -11
81 = -11 + 2d

Solving
81 = -11 + 2d

Solving for variable 'd'.

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

Add '-2d' to each side of the equation.
81 + -2d = -11 + 2d + -2d

Combine like terms: 2d + -2d = 0
81 + -2d = -11 + 0
81 + -2d = -11

Add '-81' to each side of the equation.
81 + -81 + -2d = -11 + -81

Combine like terms: 81 + -81 = 0
0 + -2d = -11 + -81
-2d = -11 + -81

Combine like terms: -11 + -81 = -92
-2d = -92

Divide each side by '-2'.
d = 46

Simplifying
d = 46

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