rebecka050505 rebecka050505
  • 13-12-2020
  • Mathematics
contestada

x - 9 = 0.7*x + 0.6*x

Respuesta :

Dead3ill
Dead3ill Dead3ill
  • 13-12-2020

Answer:

x = -30

Step-by-step explanation:

[tex]0.7x+0.6x=1x-9\\=>1.3x=1x-9\\=>1.3x-1x=9\\=>0.3x=-9\\=>\frac{3}{10}x =-9\\=>x=\frac{-9*10}{3} =-30[/tex]

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