2x+8.4 6.3一4.8x 3(x一|.2)=11.4 5.5-1.7x2=13.|2x+8.4 6.3一4.8x 3(x一|.2)=11.4 5.5-1.7x2=13.| 1.6x 除0.8=2(2.6+x)除2.
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2x+8.4 6.3一4.8x 3(x一|.2)=11.4 5.5-1.7x2=13.|2x+8.4 6.3一4.8x 3(x一|.2)=11.4 5.5-1.7x2=13.| 1.6x 除0.8=2(2.6+x)除2.
2x+8.4 6.3一4.8x 3(x一|.2)=11.4 5.5-1.7x2=13.|
2x+8.4 6.3一4.8x 3(x一|.2)=11.4 5.5-1.7x2=13.| 1.6x 除0.8=2(2.6+x)除2.
2x+8.4 6.3一4.8x 3(x一|.2)=11.4 5.5-1.7x2=13.|2x+8.4 6.3一4.8x 3(x一|.2)=11.4 5.5-1.7x2=13.| 1.6x 除0.8=2(2.6+x)除2.
12581
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2x+8.4 6.3一4.8x 3(x一|.2)=11.4 5.5-1.7x2=13.|2x+8.4 6.3一4.8x 3(x一|.2)=11.4 5.5-1.7x2=13.| 1.6x 除0.8=2(2.6+x)除2.
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