-9d+1=-80

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Solution for -9d+1=-80 equation: 


Simplifying
-9d + 1 = -80

Reorder the terms:
1 + -9d = -80

Solving
1 + -9d = -80

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 + -9d = -80 + -1

Combine like terms: 1 + -1 = 0
0 + -9d = -80 + -1
-9d = -80 + -1

Combine like terms: -80 + -1 = -81
-9d = -81

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

Simplifying
d = 9

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