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问题：一元一次不等式一元二次方程二元一次方程共30道
答案：↓↓↓ 刘小廷的回答： 网友采纳 1)66x17y=3967 25xy=1200 答案：x=48y=47 ⑵18x23y=2303 74x-y=1998 答案：x=27y=79 ⑶44x90y=7796 44xy=3476 答案：x=79y=48 ⑷76x-66y=4082 30x-y=2940 答案：x=98y=51 ⑸67x54y=8546 71x-y=5680 答案：x=80y=59 ⑹42x-95y=-1410 21x-y=1575 答案：x=75y=48 ⑺47x-40y=853 34x-y=2006 答案：x=59y=48 ⑻19x-32y=-1786 75xy=4950 答案：x=66y=95 (9)97x24y=7202 58x-y=2900 答案：x=50y=98 ⑽42x85y=6362 63x-y=1638 答案：x=26y=62 ⑾85x-92y=-2518 27x-y=486 答案：x=18y=44 ⑿79x40y=2419 56x-y=1176 答案：x=21y=19 (13)80x-87y=2156 22x-y=880 答案：x=40y=12 ⒁32x62y=5134 57xy=2850 答案：x=50y=57 ⒂83x-49y=82 59xy=2183 答案：x=37y=61 (16)91x70y=5845 95x-y=4275 答案：x=45y=25 (17)29x44y=5281 88x-y=3608 答案：x=41y=93 (18)25x-95y=-4355 40x-y=2000 答案：x=50y=59 (19)54x68y=3284 78xy=1404 答案：x=18y=34 (20)70x13y=3520 52xy=2132 答案：x=41y=50 (21)48x-54y=-3186 24xy=1080 答案：x=45y=99 (22)36x77y=7619 47x-y=799 答案：x=17y=91 (23)13x-42y=-2717 31x-y=1333 答案：x=43y=78 (24)28x28y=3332 52x-y=4628 答案：x=89y=30 (25)62x-98y=-2564 46x-y=2024 答案：x=44y=54 (26)79x-76y=-4388 26x-y=832 答案：x=32y=91 (27)63x-40y=-821 42x-y=546 答案：x=13y=41 (28)69x-96y=-1209 42xy=3822 答案：x=91y=78 (29)85x67y=7338 11xy=308 答案：x=28y=74 (30)78x74y=12928 14xy=1218 答案：x=87y=83 | 
