5z-8z=21

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Solution for 5z-8z=21 equation: 


Simplifying
5z + -8z = 21

Combine like terms: 5z + -8z = -3z
-3z = 21

Solving
-3z = 21

Solving for variable 'z'.

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

Divide each side by '-3'.
z = -7

Simplifying
z = -7

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