Comidex
Comidex Comidex
  • 21-03-2021
  • Mathematics
contestada

Liu chose an integer. She added 3. Then, she multiplied the sum by -7. The answer was 84. What integer did Liu choose?

Respuesta :

surasa
surasa surasa
  • 21-03-2021

Answer:

-15

Step-by-step explanation:

let the integer be x.

-7(x+3)=84

Answer Link
stevePOTENTIALS
stevePOTENTIALS stevePOTENTIALS
  • 21-03-2021

Step-by-step explanation:

let the integer be x

(x+3) -7 =84

-7x-21=84

-7x=84+21

-7x=105

divide both sides by -7

x= -15

Answer Link

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