(-x)-(-3x)=

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


Simplifying
(-1x) + -1(-3x) = 0

Remove parenthesis around (-3x)
(-1x) + -1 * -3x = 0

Multiply -1 * -3
(-1x) + 3x = 0

Combine like terms: (-1x) + 3x = 2x
2x = 0

Solving
2x = 0

Solving for variable 'x'.

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

Divide each side by '2'.
x = 0

Simplifying
x = 0

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