coralysdelgado2009 coralysdelgado2009
  • 13-09-2022
  • Mathematics
contestada

n + 30 + 2n - 10 + 70 =180​

Respuesta :

Brainly4Life91 Brainly4Life91
  • 13-09-2022

Answer:

n=30

Step-by-step explanation:

n+30+2n-10+70=180

We move all terms to the left:

n+30+2n-10+70-(180)=0

We add all the numbers together, and all the variables

3n-90=0

We move all terms containing n to the left, all other terms to the right

3n=90

n=90/3

n=30

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