(2x+1)/5-(x+1)/3=0 兩邊同時(shí)乘以15得
3(2x+1)-5(x+1)=0
6x+3-5x-5=0
x-2=0
x=2沒看懂哦(2x+1)/5-(x+1)/3=0去分母3(2x+1)-5(x+1)=0去括號(hào)6x+3-5x-5=0合并同類項(xiàng)x-2=0 移項(xiàng)x=2
(2x+1)/5-(x+1)/3=0
(2x+1)/5-(x+1)/3=0
數(shù)學(xué)人氣：742 ℃時(shí)間：2020-04-11 16:35:10
優(yōu)質(zhì)解答
我來回答
類似推薦
猜你喜歡
- 1都有哪些東西可以和速度快或是加快速度有聯(lián)系的（物品,事件,詞語,現(xiàn)象等）希望盡量全面些哦!
- 2英語動(dòng)詞填空what he said _______(record) just now. We can listen to it again.
- 3服裝廠生產(chǎn)襯衫,上半月完成計(jì)劃的45%,下半月比上半月多生產(chǎn)350件,剛好完成任務(wù).
- 4Tim was very______because many friends came to his birthday party.
- 5we moved to Canada in 2008變成否定句
- 6澄清石灰水中加鹽酸的離子方程式是?
- 7I think that it's a useful to learn a foreign-language.
- 8世界上有多少種字典?有多少種查字典的方法?應(yīng)該怎樣查?
- 9如果A>0,B>0,那么A+B>0 的逆命題,是真是假
- 10一個(gè)多邊形除了一個(gè)內(nèi)角外，其余各內(nèi)角之和為1680°，那么這個(gè)多邊形的邊數(shù)為_．
- 11鋁與硫酸鐵反應(yīng)
- 12把下列句子整理成一段通頗的話,在括號(hào)里填上序號(hào).快的加50分~