x-2x=3x-4x

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Solution for x-2x=3x-4x equation: 


Simplifying
x + -2x = 3x + -4x

Combine like terms: x + -2x = -1x
-1x = 3x + -4x

Combine like terms: 3x + -4x = -1x
-1x = -1x

Add 'x' to each side of the equation.
-1x + x = -1x + x

Combine like terms: -1x + x = 0
0 = -1x + x

Combine like terms: -1x + x = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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