6z-z=9z-4z

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Solution for 6z-z=9z-4z equation: 


Simplifying
6z + -1z = 9z + -4z

Combine like terms: 6z + -1z = 5z
5z = 9z + -4z

Combine like terms: 9z + -4z = 5z
5z = 5z

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

Combine like terms: 5z + -5z = 0
0 = 5z + -5z

Combine like terms: 5z + -5z = 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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