slilydezso
slilydezso slilydezso
  • 17-03-2021
  • Mathematics
contestada

3(−4n−6)+5≥−2n+7. Please help. I got lost at step one.

Respuesta :

frasersol24
frasersol24 frasersol24
  • 17-03-2021

Answer:

[tex]n\le \:-2[/tex]

Step-by-step explanation:

[tex]3\left(-4n-6\right)+5\ge \:-2n+7[/tex]

[tex]-12n-13\ge \:-2n+7[/tex]

[tex]-12n\ge \:-2n+20[/tex]

[tex]-12n+2n\ge \:-2n+20+2n[/tex]

[tex]-10n\ge \:20[/tex]

[tex]\left(-10n\right)\left(-1\right)\le \:20\left(-1\right)[/tex]

[tex]10n\le \:-20[/tex]

[tex]\frac{10n}{10}\le \frac{-20}{10}[/tex]

[tex]n\le \:-2[/tex]

Hope this helps!

All the love, Ya boi Fraser :)

Answer Link
littlemanhakakha littlemanhakakha
  • 17-03-2021

Answer:

n<   -2        (the < should have a _ under it.

Answer Link

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