化简求值题和答案30道
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初二数学分式化简求值练习题及答案
.-9(x-2)-y(x-5)x=5,y=12,求式值.2.5(9+a)×b-5(5+b)×aa=5/7,求式值.3.62g+62(g+b)-bg=5/7,b=16,求式值.4.3(x+y)-5(4+x)+2yx=9,y=2,求式值.5.(x+y)(x-y)x=0.45,y=0.65,求式值.6.2ab+a×a-ba=8.2,b=0.2,求式值.7.5.6x+4(x+y)-yx=0.25.y=8...
.-9(x-2)-y(x-5)x=5,y=12,求式值.2.5(9+a)×b-5(5+b)×aa=5/7,求式值.3.62g+62(g+b)-bg=5/7,b=16,求式值.4.3(x+y)-5(4+x)+2yx=9,y=2,求式值.5.(x+y)(x-y)x=0.45,y=0.65,求式值.6.2ab+a×a-ba=8.2,b=0.2,求式值.7.5.6x+4(x+y)-yx=0.25.y=8...