4x-9=4x

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Solution for 4x-9=4x equation: 


Simplifying
4x + -9 = 4x

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

Add '-4x' to each side of the equation.
-9 + 4x + -4x = 4x + -4x

Combine like terms: 4x + -4x = 0
-9 + 0 = 4x + -4x
-9 = 4x + -4x

Combine like terms: 4x + -4x = 0
-9 = 0

Solving
-9 = 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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