Respuesta :

Answer:

3. x = 1<x−2<71<x-2<7

         9<x+7<109<x+7<10

         7<x+4<12

5. x = 1<x−2<71<x-2<7

         9<x+7<109<x+7<10

         7<x+4<12

Step-by-step explanation:

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