Ответ:
x=9,5 и у=-1,5
Объяснение:
[tex]\left \{ {{y+x=8} \atop {x-y=11}} \right. \\y+x+(x-y)=8+11\\y+x+x-y=19\\\\2x=19\\x=9,5\\x-y=11\\y=x-11\\y=9,5-11\\y=-1,5[/tex]
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Ответ:
x=9,5 и у=-1,5
Объяснение:
[tex]\left \{ {{y+x=8} \atop {x-y=11}} \right. \\y+x+(x-y)=8+11\\y+x+x-y=19\\\\2x=19\\x=9,5\\x-y=11\\y=x-11\\y=9,5-11\\y=-1,5[/tex]