5x+3y=18 3x+5y=14学霸顺便帮忙解解这题0.2x+0.3y=4.6 0.2x+y=11.6
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![5x+3y=18 3x+5y=14学霸顺便帮忙解解这题0.2x+0.3y=4.6 0.2x+y=11.6](/uploads/image/z/4099512-48-2.jpg?t=5x%2B3y%3D18+3x%2B5y%3D14%E5%AD%A6%E9%9C%B8%E9%A1%BA%E4%BE%BF%E5%B8%AE%E5%BF%99%E8%A7%A3%E8%A7%A3%E8%BF%99%E9%A2%980.2x%2B0.3y%3D4.6+0.2x%2By%3D11.6)
5x+3y=18 3x+5y=14学霸顺便帮忙解解这题0.2x+0.3y=4.6 0.2x+y=11.6
5x+3y=18 3x+5y=14
学霸顺便帮忙解解这题0.2x+0.3y=4.6 0.2x+y=11.6
5x+3y=18 3x+5y=14学霸顺便帮忙解解这题0.2x+0.3y=4.6 0.2x+y=11.6
5x+3y=18 3x+5y=14
x=3,y=1
0.2x+0.3y=4.6 0.2x+y=11.6
y=10,x=8
(x+y-5)*(x+y-5)+(x-y+3)=0 x*x-y*y
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(5x+3y)(3y-5x)-(4x-y)(4y+x)=
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