5-5=9z-7z

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Solution for 5-5=9z-7z equation: 


Simplifying
5 + -5 = 9z + -7z

Combine like terms: 5 + -5 = 0
0 = 9z + -7z

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

Solving
0 = 2z

Solving for variable 'z'.

Move all terms containing z to the left, all other terms to the right.

Add '-2z' to each side of the equation.
0 + -2z = 2z + -2z
Remove the zero:
-2z = 2z + -2z

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

Divide each side by '-2'.
z = 0

Simplifying
z = 0

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