hanielovesmusic65
hanielovesmusic65 hanielovesmusic65
  • 03-11-2021
  • Mathematics
contestada

f(x)=8x+5

f(x)=21

find x

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spammingallowed
spammingallowed spammingallowed
  • 03-11-2021

Answer:

[tex]f(x) = 8 x + 5...(1) \\ f(x) = 21...(2) \\ (1) = (2) \\ 8x + 5 = 21 \\ 8x = 21 - 5 \\ 8x = 16 \\ x = \frac{16}{8} = 2 \\ x = 2 \\ thank \: you[/tex]

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manissaha129
manissaha129 manissaha129
  • 10-11-2021

Answer:

[tex]f(x) = 8x + 5 \\ f(x) = 21 \\ 8x + 5 = 21 \\ 8x = 21 - 5 \\ 8x = 16 \\ x =\frac{16}{8} \\ \boxed{x = 2}[/tex]

  • x = 2 is the right answer.
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