8x加上x=46.8

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8x加上x=46.88x加上x=46.88x加上x=46.813x-6.8x+x=46.87.2x=46.8x=6.5(13-6.8+1)x=46.8x=46.8/7.2=7.513x-6.8x+x=

8x加上x=46.8
8x加上x=46.8

8x加上x=46.8
13x-6.8x+x=46.8
7.2x=46.8
x=6.5

(13-6.8+1)x=46.8
x=46.8/7.2=7.5

13x-6.8x+x=46.8
7.2x=46.8
x=6.5

13x-6.8x+x=46.8
6.2x=46.8
x约等于7.5

13x-6.8x+x=46.8
7.2x=46.8
x=6.5

13x-6.8x+x=46.8
7.2x=46.8
x=6.5

(13-6.8 1)x=46.8 x=46.8/7.2=7.5 13x-6.8x x=46.8 7.2x=46.8 x=6.5 13x-6.8x x=46.8 7.2x=46.8 x=6.5 ..