10z-12z-7z+9z=

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Solution for 10z-12z-7z+9z= equation: 


Simplifying
10z + -12z + -7z + 9z = 0

Combine like terms: 10z + -12z = -2z
-2z + -7z + 9z = 0

Combine like terms: -2z + -7z = -9z
-9z + 9z = 0

Combine like terms: -9z + 9z = 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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