9x-5x=123

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Solution for 9x-5x=123 equation: 


Simplifying
9x + -5x = 123

Combine like terms: 9x + -5x = 4x
4x = 123

Solving
4x = 123

Solving for variable 'x'.

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

Divide each side by '4'.
x = 30.75

Simplifying
x = 30.75

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