一條方程式,求x

2006-12-05 2:56 am
以下為一條方程式,求x。
2(3x+9)+9(5x+20) = 606
x=?

回答 (18)

2006-12-05 3:01 am
✔ 最佳答案
2(3x+9)+9(5x+20) = 606
6x+18+45x+180=606
51x+198=606
51x=408
x=8
參考: myself
2006-12-13 2:02 am
thx+good
2006-12-13 1:07 am
2(3x+9)+9(5x+20) = 606
6x+18+45x+180 = 606
51x + 198 = 606
51x = 408
x = 8
2006-12-11 10:04 pm
2(3x+9)+9(5x+20) = 606
6x+18+45x+180 = 606
51x+198=606
51x=606-198
51x=408
x=8
參考: me
2006-12-05 5:24 am
2(3x+9)+9(5x+20) = 606
2x3x+2x9+9x5x+9x20=606
6x+18+45x+180=606
51x+198=606
51x=606-198
51x=408
x=8
參考: me
2006-12-05 3:43 am
2(3X +9) + 9(5X +20) = 606
6X + 18 + 45X+180 = 606
51X = 606 - 18 - 180
X= 8
參考: ME
2006-12-05 3:09 am
6x+18+45x+180=606




51x+198=606



51x=408




x=8
2006-12-05 3:05 am
2(3x+9)+9(5x+20)=606

6x+18+45x+180=606

51x=408

x=8
2006-12-05 3:03 am
2(3x+9)+9(5x+20)=606
6x+18+45x+180=606
51x+198=606
51x=408
x=8
參考: me
2006-12-05 3:02 am
6x + 18 + 45x + 180 = 606
51x = 408
x = 8
2006-12-05 3:01 am
2(3x+9)+9(5x+20) = 606
6x + 18 + 45x + 180 = 606
51x = 408
x = 8


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