z+9=-20

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Solution for z+9=-20 equation: 


Simplifying
z + 9 = -20

Reorder the terms:
9 + z = -20

Solving
9 + z = -20

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 + z = -20 + -9

Combine like terms: 9 + -9 = 0
0 + z = -20 + -9
z = -20 + -9

Combine like terms: -20 + -9 = -29
z = -29

Simplifying
z = -29

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