求20道解二元一次方程组练习题及答案!
求20道解二元一次方程组练习题及答案!
数学人气:876 ℃时间:2020-02-03 21:49:19
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亲 网友答得 我帮你收集的 (1) 66x+17y=3967 25x+y=1200 答案:x=48 y=47 (2) 18x+23y=2303 74x-y=1998 答案:x=27 y=79 (3) 44x+90y=779644x+y=3476 答案:x=79 y=48 (4) 76x-66y=4082 30x-y=2940 答案:x=98 y=51...
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