z-40=-42

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Solution for z-40=-42 equation: 


Simplifying
z + -40 = -42

Reorder the terms:
-40 + z = -42

Solving
-40 + z = -42

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 = -42 + 40

Combine like terms: -40 + 40 = 0
0 + z = -42 + 40
z = -42 + 40

Combine like terms: -42 + 40 = -2
z = -2

Simplifying
z = -2

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