Maths

2007-05-16 2:40 am

8x+7.2=9-x
give me the step and answer

回答 (8)

2007-05-16 2:42 am

✔ 最佳答案

8x+7.2=9-x

9x+7.2=9

9x= 1.8

x=0.2

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2007-05-16 5:00 am

8x+7.2=9-x
8x+7.2+x=9
9x=9-7.2
9x=1.8
x=0.2
希望能幫到你啦!

參考: myself

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2007-05-16 3:21 am

8x + 7.2 = 9 - x
8x + x = 9 - 7.2
9x　　　= 1.8
9x / 9　 = 1.8 / 9
x　　　 = 0.2

希望幫到你

參考: myself

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2007-05-16 2:50 am

8x + 7.2 = 9 - x

8x + 7.2 + x = 9 - x + x

9x + 7.2 = 9

9x + 7.2 - 7.2 = 9 - 7.2

9x / 9 = 1.8 / 9

x =0.2

參考: ME!!!

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2007-05-16 2:48 am

8x+7.2=9-x
8x+x=9-7.2
9x=1.8
x=0.2

參考: me

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2007-05-16 2:47 am

8x+7.2=9-x

8x+7.2+x=9

9x=9-7.2

9x=1.8

x=0.2

Hope I can help u!!!=)

參考: ME

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2007-05-16 2:43 am

8x+7.2=9-x
8x+x=9-7.2
9x=1.8
x=0.2

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2007-05-16 2:43 am

8x+7.2=9-X
9x=9-7.2
x=0.2

參考: me

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