{x+y=50 6x+5y=264 {x+y=50 6x+4y=264 解方程,
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{x+y=50 6x+5y=264 {x+y=50 6x+4y=264 解方程,
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![{x+y=50 6x+5y=264 {x+y=50 6x+4y=264 解方程,](/uploads/image/z/16291022-14-2.jpg?t=%7Bx%2By%3D50+6x%2B5y%3D264+%7Bx%2By%3D50+6x%2B4y%3D264+%E8%A7%A3%E6%96%B9%E7%A8%8B%2C)
x+y=50 (1)6x+5y=264(2)
(1)*6-(2)得:y=300-264=36
(2)-(1)*5得;x=264-250=14
所以有x=14,y=36
x+y=50(1) 6x+4y=264 (2)
(1)*6-(2)得:2y=300-264,y=18
(2)-(1)*4得:2x=264-200,x=32
所以有x=32,y=18
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(1)*6-(2)得:y=300-264=36
(2)-(1)*5得;x=264-250=14
所以有x=14,y=36
x+y=50(1) 6x+4y=264 (2)
(1)*6-(2)得:2y=300-264,y=18
(2)-(1)*4得:2x=264-200,x=32
所以有x=32,y=18
你能明白,赞同
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