90+3x=123

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Solution for 90+3x=123 equation: 


Simplifying
90 + 3x = 123

Solving
90 + 3x = 123

Solving for variable 'x'.

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

Add '-90' to each side of the equation.
90 + -90 + 3x = 123 + -90

Combine like terms: 90 + -90 = 0
0 + 3x = 123 + -90
3x = 123 + -90

Combine like terms: 123 + -90 = 33
3x = 33

Divide each side by '3'.
x = 11

Simplifying
x = 11

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