1-7d=81

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Solution for 1-7d=81 equation: 


Simplifying
1 + -7d = 81

Solving
1 + -7d = 81

Solving for variable 'd'.

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

Add '-1' to each side of the equation.
1 + -1 + -7d = 81 + -1

Combine like terms: 1 + -1 = 0
0 + -7d = 81 + -1
-7d = 81 + -1

Combine like terms: 81 + -1 = 80
-7d = 80

Divide each side by '-7'.
d = -11.42857143

Simplifying
d = -11.42857143

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