2z-9=11

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Solution for 2z-9=11 equation: 


Simplifying
2z + -9 = 11

Reorder the terms:
-9 + 2z = 11

Solving
-9 + 2z = 11

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 + 2z = 11 + 9

Combine like terms: -9 + 9 = 0
0 + 2z = 11 + 9
2z = 11 + 9

Combine like terms: 11 + 9 = 20
2z = 20

Divide each side by '2'.
z = 10

Simplifying
z = 10

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