5z-21=89

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Solution for 5z-21=89 equation: 


Simplifying
5z + -21 = 89

Reorder the terms:
-21 + 5z = 89

Solving
-21 + 5z = 89

Solving for variable 'z'.

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

Add '21' to each side of the equation.
-21 + 21 + 5z = 89 + 21

Combine like terms: -21 + 21 = 0
0 + 5z = 89 + 21
5z = 89 + 21

Combine like terms: 89 + 21 = 110
5z = 110

Divide each side by '5'.
z = 22

Simplifying
z = 22

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