3x+(-x)=13

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Solution for 3x+(-x)=13 equation: 


Simplifying
3x + (-1x) = 13

Combine like terms: 3x + (-1x) = 2x
2x = 13

Solving
2x = 13

Solving for variable 'x'.

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

Divide each side by '2'.
x = 6.5

Simplifying
x = 6.5

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