3z-8z=84-99

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Solution for 3z-8z=84-99 equation: 


Simplifying
3z + -8z = 84 + -99

Combine like terms: 3z + -8z = -5z
-5z = 84 + -99

Combine like terms: 84 + -99 = -15
-5z = -15

Solving
-5z = -15

Solving for variable 'z'.

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

Divide each side by '-5'.
z = 3

Simplifying
z = 3

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