-6z-5-4=21

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Solution for -6z-5-4=21 equation:


Simplifying
-6z + -5 + -4 = 21

Reorder the terms:
-5 + -4 + -6z = 21

Combine like terms: -5 + -4 = -9
-9 + -6z = 21

Solving
-9 + -6z = 21

Solving for variable 'z'.

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

Add '9' to each side of the equation.
-9 + 9 + -6z = 21 + 9

Combine like terms: -9 + 9 = 0
0 + -6z = 21 + 9
-6z = 21 + 9

Combine like terms: 21 + 9 = 30
-6z = 30

Divide each side by '-6'.
z = -5

Simplifying
z = -5

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