willia489 willia489

04-10-2020
Mathematics

contestada

twice a number, decreased by 9 is 12

Respuesta :

annaasif33 annaasif33

04-10-2020

Answer:

10.5

Step-by-step explanation:

Answer Link

ijateguzo ijateguzo

04-10-2020

Answer:

10.5

Step-by-step explanation:

2x-9=12

2x=12+9

2x=21

x=21/2

x=10.5

Answer Link

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