9x-18=171

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Solution for 9x-18=171 equation: 


Simplifying
9x + -18 = 171

Reorder the terms:
-18 + 9x = 171

Solving
-18 + 9x = 171

Solving for variable 'x'.

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

Add '18' to each side of the equation.
-18 + 18 + 9x = 171 + 18

Combine like terms: -18 + 18 = 0
0 + 9x = 171 + 18
9x = 171 + 18

Combine like terms: 171 + 18 = 189
9x = 189

Divide each side by '9'.
x = 21

Simplifying
x = 21

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