-7z-9z=20

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Solution for -7z-9z=20 equation: 


Simplifying
-7z + -9z = 20

Combine like terms: -7z + -9z = -16z
-16z = 20

Solving
-16z = 20

Solving for variable 'z'.

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

Divide each side by '-16'.
z = -1.25

Simplifying
z = -1.25

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