z-30=-42

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Solution for z-30=-42 equation: 


Simplifying
z + -30 = -42

Reorder the terms:
-30 + z = -42

Solving
-30 + z = -42

Solving for variable 'z'.

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

Add '30' to each side of the equation.
-30 + 30 + z = -42 + 30

Combine like terms: -30 + 30 = 0
0 + z = -42 + 30
z = -42 + 30

Combine like terms: -42 + 30 = -12
z = -12

Simplifying
z = -12

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