小六簡易方程式計算法:

2008-03-20 10:06 pm

計算簡易方程式並求其y之答案

3y÷50% = 4y + 22/5

y=?

請求賜教

回答 (4)

2008-03-21 12:23 am

✔ 最佳答案

3y÷50% = 4y + 22/5
3y÷50/100 = 4y + 22/5
3y÷1/2= 4y + 22/5
3y*2=4y+22/5
6y=4y+22/5
6y-4y== 4y + 22/5-4y
2y=22/5
2y÷2=22/5÷2
y=22/10
y=11/5

*=x

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2008-03-21 2:01 am

3y/50%=4y+22/5
6y=4y+22/5
2y=22/5
y=11/5
y=2and1/5 or2.2

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2008-03-21 12:34 am

3y÷50% = 4y + 22/5
3y*2=4y+22/5
6y=4y+22/5
2y=22/5
y=2又1/5

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2008-03-20 10:10 pm

3y÷50% = 4y + 22/5
3y÷0.5 = 4y + 22/5
6y = 4y + 22/5
2y = 22/5
y = 11/5

參考: myself

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