18+z=z

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Solution for 18+z=z equation: 


Simplifying
18 + z = z

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

Combine like terms: z + -1z = 0
18 + 0 = z + -1z
18 = z + -1z

Combine like terms: z + -1z = 0
18 = 0

Solving
18 = 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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