40+z=20

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Solution for 40+z=20 equation: 


Simplifying
40 + z = 20

Solving
40 + z = 20

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 = 20 + -40

Combine like terms: 40 + -40 = 0
0 + z = 20 + -40
z = 20 + -40

Combine like terms: 20 + -40 = -20
z = -20

Simplifying
z = -20

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