z-40=-45

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Solution for z-40=-45 equation: 


Simplifying
z + -40 = -45

Reorder the terms:
-40 + z = -45

Solving
-40 + z = -45

Solving for variable 'z'.

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

Add '40' to each side of the equation.
-40 + 40 + z = -45 + 40

Combine like terms: -40 + 40 = 0
0 + z = -45 + 40
z = -45 + 40

Combine like terms: -45 + 40 = -5
z = -5

Simplifying
z = -5

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