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answers for both boxes please :)​

Answers For Both Boxes Please class=

Sagot :

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]

Step-by-step explanation: