123-5x=3x+9

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Solution for 123-5x=3x+9 equation:


Simplifying
123 + -5x = 3x + 9

Reorder the terms:
123 + -5x = 9 + 3x

Solving
123 + -5x = 9 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
123 + -5x + -3x = 9 + 3x + -3x

Combine like terms: -5x + -3x = -8x
123 + -8x = 9 + 3x + -3x

Combine like terms: 3x + -3x = 0
123 + -8x = 9 + 0
123 + -8x = 9

Add '-123' to each side of the equation.
123 + -123 + -8x = 9 + -123

Combine like terms: 123 + -123 = 0
0 + -8x = 9 + -123
-8x = 9 + -123

Combine like terms: 9 + -123 = -114
-8x = -114

Divide each side by '-8'.
x = 14.25

Simplifying
x = 14.25

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