Respuesta :

SplatterBrain

Answer:

-21+7r

Step-by-step explanation:

Answer:

[tex]\boxed{-21+7r}[/tex]

Solution Steps:

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1.) Use distributive property:

  • [tex]7[/tex] × [tex]-3=-21[/tex]
  • [tex]7[/tex] × [tex]r=7r[/tex]

 - We do distributive property because we see parenthesis with a number/variable outside of the parenthesis.

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