4z-9z=9z-9-7z

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Solution for 4z-9z=9z-9-7z equation: 


Simplifying
4z + -9z = 9z + -9 + -7z

Combine like terms: 4z + -9z = -5z
-5z = 9z + -9 + -7z

Reorder the terms:
-5z = -9 + 9z + -7z

Combine like terms: 9z + -7z = 2z
-5z = -9 + 2z

Solving
-5z = -9 + 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.
-5z + -2z = -9 + 2z + -2z

Combine like terms: -5z + -2z = -7z
-7z = -9 + 2z + -2z

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

Divide each side by '-7'.
z = 1.285714286

Simplifying
z = 1.285714286

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