13-x=4-x

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Solution for 13-x=4-x equation: 


Simplifying
13 + -1x = 4 + -1x

Add 'x' to each side of the equation.
13 + -1x + x = 4 + -1x + x

Combine like terms: -1x + x = 0
13 + 0 = 4 + -1x + x
13 = 4 + -1x + x

Combine like terms: -1x + x = 0
13 = 4 + 0
13 = 4

Solving
13 = 4

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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