melaniep3riav melaniep3riav

15-06-2020
Mathematics

contestada

A number x increased by 9 is less than 21.

Respuesta :

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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