-21=z-27

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Solution for -21=z-27 equation:


Simplifying
-21 = z + -27

Reorder the terms:
-21 = -27 + z

Solving
-21 = -27 + z

Solving for variable 'z'.

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

Add '-1z' to each side of the equation.
-21 + -1z = -27 + z + -1z

Combine like terms: z + -1z = 0
-21 + -1z = -27 + 0
-21 + -1z = -27

Add '21' to each side of the equation.
-21 + 21 + -1z = -27 + 21

Combine like terms: -21 + 21 = 0
0 + -1z = -27 + 21
-1z = -27 + 21

Combine like terms: -27 + 21 = -6
-1z = -6

Divide each side by '-1'.
z = 6

Simplifying
z = 6

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