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Mathematics
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2gใฟๅฃซ6ใฟ7ไธ8
ใฎ่งฃใใใถ2, 91 ใฎใจใ. gwใ6ใฎๅคใ็ฒใ
ๅ
ญ็จ RM 2 ใซ
9 ๆๅๅผ|
(โซ ๆฌกใฎ 2 ใคใฎ้ฃ็ซๆน็จๅผใๅใ่งฃใใใคใจใ, oใใกใฎๅคใๆฑใใชใใใ
ๆถๆจ =ใ12 ] 3ใถๅ29ไธ5
9ใฐๅ2ใฟ็8 5zๅ0/ไธ3
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Answers
ใจใใใใใ(1)ใงใใ
ๅๅผใซx.yใฎๅคใไปฃๅ
ฅใใฆใใ่จ็ฎใงใ๏ผ
(2)ใซใคใใฆใฏใๅ้ฃ็ซๆน็จๅผใฎx.yใฏๅใๆฐใชใฎใง
2x-3y=12
3x+2y=5
ใง่จ็ฎใ่กใใx.yใฎๅคใๅบใใพใใ
ใใฎๅพใฏ(1)ใจๅใใงx.yใฎๅคใไปฃๅ ฅใใa.bใๆฑใใพใใ
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