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7 > z + 18 ≥ 6 please help me!

User Aledustet
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1 Answer

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7 > z + 18 ≥ 6

Subtract 18 from all 3 parts:

7-18 > z +18 -18 ≥ 6-18

-11 > z ≥ -12

User Huupke
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