1.若(3x+4y-1)^2+|3y-2x-5|=0则x=1.A=-1 B=1 C=2 D=-22.已知x/3-y/2=1,可以得到X表示Y的式子是2.A.Y=2X-2/3 B.Y=2X/3-1/3 C.Y=2X/3-2 D.Y=2-2X/3
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![1.若(3x+4y-1)^2+|3y-2x-5|=0则x=1.A=-1 B=1 C=2 D=-22.已知x/3-y/2=1,可以得到X表示Y的式子是2.A.Y=2X-2/3 B.Y=2X/3-1/3 C.Y=2X/3-2 D.Y=2-2X/3](/uploads/image/z/6421290-42-0.jpg?t=1.%E8%8B%A5%283x%2B4y-1%29%5E2%2B%7C3y-2x-5%7C%3D0%E5%88%99x%3D1.A%3D-1+B%3D1+C%3D2+D%3D-22.%E5%B7%B2%E7%9F%A5x%2F3-y%2F2%3D1%2C%E5%8F%AF%E4%BB%A5%E5%BE%97%E5%88%B0X%E8%A1%A8%E7%A4%BAY%E7%9A%84%E5%BC%8F%E5%AD%90%E6%98%AF2.A.Y%3D2X-2%2F3+B.Y%3D2X%2F3-1%2F3+C.Y%3D2X%2F3-2+D.Y%3D2-2X%2F3)
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1.若(3x+4y-1)^2+|3y-2x-5|=0则x=1.A=-1 B=1 C=2 D=-22.已知x/3-y/2=1,可以得到X表示Y的式子是2.A.Y=2X-2/3 B.Y=2X/3-1/3 C.Y=2X/3-2 D.Y=2-2X/3
1.若(3x+4y-1)^2+|3y-2x-5|=0则x=
1.A=-1 B=1 C=2 D=-2
2.已知x/3-y/2=1,可以得到X表示Y的式子是
2.A.Y=2X-2/3 B.Y=2X/3-1/3 C.Y=2X/3-2 D.Y=2-2X/3
1.若(3x+4y-1)^2+|3y-2x-5|=0则x=1.A=-1 B=1 C=2 D=-22.已知x/3-y/2=1,可以得到X表示Y的式子是2.A.Y=2X-2/3 B.Y=2X/3-1/3 C.Y=2X/3-2 D.Y=2-2X/3
(1)
由已知,得
3x+4y-1=0
3y-2x-5=0
解,得
x=-1 y=1
答案A
(2)
等式两边同时乘以2,得
(2*x)/3-y=2
移项,得
y=(2*x)/3-2
应该选C
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