4x+(-x)=9

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Solution for 4x+(-x)=9 equation: 


Simplifying
4x + (-1x) = 9

Combine like terms: 4x + (-1x) = 3x
3x = 9

Solving
3x = 9

Solving for variable 'x'.

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

Divide each side by '3'.
x = 3

Simplifying
x = 3

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