已知(y+2x)/xy=3/2,求(4x+3xy+2y)/(-4x+8xy-2y)
1个回答
(y+2x)/xy=3/2>>2y+4x=3xy
所以(4x+3xy+2y)/(-4x+8xy-2y)=(3xy+3xy)/(-3xy+8xy)=6xy/5xy=6/5
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