-9x-1=-80

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Solution for -9x-1=-80 equation: 


Simplifying
-9x + -1 = -80

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

Solving
-1 + -9x = -80

Solving for variable 'x'.

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

Add '1' to each side of the equation.
-1 + 1 + -9x = -80 + 1

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

Combine like terms: -80 + 1 = -79
-9x = -79

Divide each side by '-9'.
x = 8.777777778

Simplifying
x = 8.777777778

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