20+z=99

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Solution for 20+z=99 equation: 


Simplifying
20 + z = 99

Solving
20 + z = 99

Solving for variable 'z'.

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

Add '-20' to each side of the equation.
20 + -20 + z = 99 + -20

Combine like terms: 20 + -20 = 0
0 + z = 99 + -20
z = 99 + -20

Combine like terms: 99 + -20 = 79
z = 79

Simplifying
z = 79

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