fresh2006 fresh2006
  • 11-12-2019
  • Mathematics
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y-2=x
-x=y
Solving system using substitution

Respuesta :

sirNEWTON
sirNEWTON sirNEWTON
  • 11-12-2019

[tex]y - 2 = x.................(eq. \: 1)[/tex]

[tex]y = - x.......................(eq .\: \: 2)[/tex]

put y = - x in equation 1 :-

[tex] - x - 2 = x[/tex]

[tex]x + x = - 2[/tex]

[tex]2x = - 2[/tex]

[tex]x = \frac{2}{2} [/tex]

[tex]x = - 1[/tex]

put x = -1 in equation 2 :-

[tex]y = - ( - 1)[/tex]

[tex]y =1[/tex]

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