若X-2y=3,则8-3X+6y的值是
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若x-y不等于0,2x-3y=0,则分式(10x-11y)/(x-y)的值是()?(10x-11y)/(x-y) =[(8x-8y)+(2x-3y)]/(x-y) =8为什么8X-8Y=8?(10x-11y)/(x-y)=[(8x-8y)+(2x-3y)]/(x-y)=8+(2x-3y)]/(x-y)=8+0=8
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若X-2y=3,则8-3X+6y的值是
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已知X-3Y=-3,则8-2X+6y的值是
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