Maths Problem

2007-03-03 5:54 am

2(x-5)-7(2x+12)=4(x-1)-15(x+1)

回答 (3)

2007-03-03 5:59 am

✔ 最佳答案

(2x-10)-(14x-84)=(4x-4)-(15x-15)

2x-10-14x+84=4x-4-15x+15

-12x+74=-11x+11

- 12x+11x=11-74

-x=-63

x=63

參考: OWN

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2007-03-03 6:10 am

2(x-5)-7(2x+12)=4(x-1)-15(x+1)
2x-10-14x+84=4x-4-15x+15
-12x+74=-11x+11
-12x+11x=11-74
-x=-63
x=63

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2007-03-03 6:08 am

2(x-5)-7(2x+12)=4(x-1)-15(x+1)
2x-10-14x-84 =4x-4-15x-15
-x=75
x=-75

參考: KING

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