melaniep3riav melaniep3riav
  • 15-06-2020
  • Mathematics
contestada

A number x increased by 9 is less than 21.

Respuesta :

mukta86
mukta86 mukta86
  • 15-06-2020

Answer:

the answer might be 12

Step-by-step explanation:

we solve it-

= x+9<21

= x-9+9<21-9

or , x=12

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