9x-9=171

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Solution for 9x-9=171 equation: 


Simplifying
9x + -9 = 171

Reorder the terms:
-9 + 9x = 171

Solving
-9 + 9x = 171

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + 9x = 171 + 9

Combine like terms: -9 + 9 = 0
0 + 9x = 171 + 9
9x = 171 + 9

Combine like terms: 171 + 9 = 180
9x = 180

Divide each side by '9'.
x = 20

Simplifying
x = 20

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