Solve for z
z=-20
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9z-13-11z=27
Subtract 11z from both sides.
-2z-13=27
Combine 9z and -11z to get -2z.
-2z=27+13
Add 13 to both sides.
-2z=40
Add 27 and 13 to get 40.
z=\frac{40}{-2}
Divide both sides by -2.
z=-20
Divide 40 by -2 to get -20.
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