4-x-9=-x

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Solution for 4-x-9=-x equation: 


Simplifying
4 + -1x + -9 = -1x

Reorder the terms:
4 + -9 + -1x = -1x

Combine like terms: 4 + -9 = -5
-5 + -1x = -1x

Add 'x' to each side of the equation.
-5 + -1x + x = -1x + x

Combine like terms: -1x + x = 0
-5 + 0 = -1x + x
-5 = -1x + x

Combine like terms: -1x + x = 0
-5 = 0

Solving
-5 = 0

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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