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Afina-wow [57]
2 years ago
8

Solve the inequality. -z+20>z+20

Mathematics
2 answers:
ehidna [41]2 years ago
7 0
-z+20>z+20\\
-2z>0\\
z
Scilla [17]2 years ago
6 0
-z+20 > z+20\ \ \ \ \ \ |subtract\ 20\ from\ both\ sides\\\\-z > z\ \ \ \ \ |add\ z\ to\ both\ sides\\\\0 > 2z\\\\2z < 0\ \ \ \ \ \ \ |divide\ both\ sides\ by\ 2\\\\z < 0\\\\z\in(-\infty;\ 0)

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