当x=5,y=3时,求代数式2x-3y/3x+2y的值
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![当x=5,y=3时,求代数式2x-3y/3x+2y的值](/uploads/image/z/979077-21-7.jpg?t=%E5%BD%93x%3D5%2Cy%3D3%E6%97%B6%2C%E6%B1%82%E4%BB%A3%E6%95%B0%E5%BC%8F2x-3y%2F3x%2B2y%E7%9A%84%E5%80%BC)
当x=5,y=3时,求代数式2x-3y/3x+2y的值
当x=5,y=3时,求代数式2x-3y/3x+2y的值
当x=5,y=3时,求代数式2x-3y/3x+2y的值
2x-3y/3x+2y
=2*5-3*3/(3*5)+2*3
=10-0.6+6
=15.4
(2x-3y)/(3x+2y)
=1/21
2*5-3*3/3*5+2*3
=10-3/5+6
=15.4
15.4