william123clark william123clark
  • 06-01-2021
  • Mathematics
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answers for both boxes please :)​

answers for both boxes please class=

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Аноним Аноним
  • 06-01-2021

Answer: (-2;8)

[tex]\left \{ {{3x+3y=18} \atop {2x+y=4}} \right. \\\\<=>\left \{ {{x+y=6} \atop {2x+y=4}} \right. \\\\=>\left \{ {{x=4-6} \atop {x+y=6}} \right. \\\\<=>\left \{ {{x=-2} \atop {x+y=6}} \right. \\\\<=>\left \{ {{x=-2} \atop {y=6-(-2)=8}} \right.[/tex]

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