2(x+5)=13.6
x+5=13.6÷2
x+5=6.8
x=6.8-5
x=1.8
猜你喜欢
- 1电源的电动势为4.5V,内电阻为0.50欧母,外电路接一个4.0欧母的电阻,这时电源两端的电压是多少V?
- 2翻译句子:He reads the book much more care fully than me.
- 3什么时候英语动词变形容词加ive ,able,ary ,al ,ed,ing,ous,ior
- 4郑小胖家的一只瓶子,买0.5kg酒刚好装满.小胖用这只瓶子去买0.5kg酱油,结果没有装满,小胖以为营业员弄错了.现在请你思考一下,到底是谁弄错了?(通过计算说明,已知ρ酒=0.8×103kg/m
- 5下课了,校园里顿时一下子沸腾了.(修改病句)
- 6The boy ___ ___ ___ _____(承诺不再迟到)Late for school again
- 7The room is __ __ __ __ 200 people .(达到容纳)
- 8排序 to take us bus the let a pak
- 9It is reported that the small country has experienced a bad economic depress,but a quick recovery will soon be__.
- 10bus这个名词复数形式