2(x+2)=3(x-4)

2007-05-13 1:04 pm

帮帮我吧!!!!!!! 2(x+2)=3(x-4). x=什么

回答 (5)

2007-05-13 1:14 pm

✔ 最佳答案

2(x+2)=3(x-4)

2x + 2 X 2= 3x - 3 X 4

2x + 4 = 3x - 12

2x + 4 + 12 = 3x

2x + 16 = 3x

16 = 3x - 2x

16 = x

x = 16

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2007-05-13 5:47 pm

2(x+2)=3(x-4)
2x + 4 = 3x - 12

x = 16

參考: 書名

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2007-05-13 4:32 pm

2(x+2)=3(x-4)
2x+4 =3x-12
3x-2x =12+4
x=16

參考: ME!!!

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2007-05-13 1:33 pm

2(x+2)=3(x-4)
2x+4=3x-12
4+12=3x-2x
16=x

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2007-05-13 1:15 pm

2(x+2)=3(x-4)
2x + 4 = 3x - 12
4 + 12 = 3x - 2x
x = 16

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