-9x-1=89

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Solution for -9x-1=89 equation: 


Simplifying
-9x + -1 = 89

Reorder the terms:
-1 + -9x = 89

Solving
-1 + -9x = 89

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 = 89 + 1

Combine like terms: -1 + 1 = 0
0 + -9x = 89 + 1
-9x = 89 + 1

Combine like terms: 89 + 1 = 90
-9x = 90

Divide each side by '-9'.
x = -10

Simplifying
x = -10

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