123-7x=20x+18

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Solution for 123-7x=20x+18 equation:


Simplifying
123 + -7x = 20x + 18

Reorder the terms:
123 + -7x = 18 + 20x

Solving
123 + -7x = 18 + 20x

Solving for variable 'x'.

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

Add '-20x' to each side of the equation.
123 + -7x + -20x = 18 + 20x + -20x

Combine like terms: -7x + -20x = -27x
123 + -27x = 18 + 20x + -20x

Combine like terms: 20x + -20x = 0
123 + -27x = 18 + 0
123 + -27x = 18

Add '-123' to each side of the equation.
123 + -123 + -27x = 18 + -123

Combine like terms: 123 + -123 = 0
0 + -27x = 18 + -123
-27x = 18 + -123

Combine like terms: 18 + -123 = -105
-27x = -105

Divide each side by '-27'.
x = 3.888888889

Simplifying
x = 3.888888889

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