123-2x=90

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Solution for 123-2x=90 equation: 


Simplifying
123 + -2x = 90

Solving
123 + -2x = 90

Solving for variable 'x'.

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

Add '-123' to each side of the equation.
123 + -123 + -2x = 90 + -123

Combine like terms: 123 + -123 = 0
0 + -2x = 90 + -123
-2x = 90 + -123

Combine like terms: 90 + -123 = -33
-2x = -33

Divide each side by '-2'.
x = 16.5

Simplifying
x = 16.5

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