deeqamire123
deeqamire123 deeqamire123
  • 17-08-2020
  • Mathematics
contestada

if 3x-9 =12then the value of x is:​

Respuesta :

Аноним Аноним
  • 17-08-2020

Answer:

Hey there!

3x-9=12

3x=21

x=7

Let me know if this helps :)

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Аноним Аноним
  • 17-08-2020

Answer:

x= 7

Step-by-step explanation:

[tex]3x - 9 = 12 \\ collect \: like \: terms \\ 3x = 12 + 9 \\ 3x = 21 \\ divide \: both \: sides \: by \: 3[/tex]

[tex] \frac{3x}{3} = \frac{21}{7} \\ x = 7[/tex]

Answer Link

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