Respuesta :

Answer:

f= -9/20

Step-by-step explanation:

20f-9=-18

     +9  +9

  20f = -9

       f= -9/20

Hope this helps :)

  • Answer:

f = - 9/20

f = - 0.45

  • Step-by-step explanation:

Hi there !

20f - 9 = - 18

20f = - 18 + 9

20f = - (18 - 9)

20f = - (9)

f = - 9⁽²/20

f = - 4.5/10

f = - 0.45

Good luck !

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