某数的3倍减去7分之4等于该数加2的和,求这个数1.解方程3分之2x-1-2分之x-4=1+6分之5 x2.甲乙丙三叔比是7:9:12,甲乙两数的和减去丙数的差等于20,求这三个数:设为一元一次方程并计算
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/02 17:46:23
![某数的3倍减去7分之4等于该数加2的和,求这个数1.解方程3分之2x-1-2分之x-4=1+6分之5 x2.甲乙丙三叔比是7:9:12,甲乙两数的和减去丙数的差等于20,求这三个数:设为一元一次方程并计算](/uploads/image/z/989295-15-5.jpg?t=%E6%9F%90%E6%95%B0%E7%9A%843%E5%80%8D%E5%87%8F%E5%8E%BB7%E5%88%86%E4%B9%8B4%E7%AD%89%E4%BA%8E%E8%AF%A5%E6%95%B0%E5%8A%A02%E7%9A%84%E5%92%8C%2C%E6%B1%82%E8%BF%99%E4%B8%AA%E6%95%B01.%E8%A7%A3%E6%96%B9%E7%A8%8B3%E5%88%86%E4%B9%8B2x-1-2%E5%88%86%E4%B9%8Bx-4%3D1%2B6%E5%88%86%E4%B9%8B5+x2.%E7%94%B2%E4%B9%99%E4%B8%99%E4%B8%89%E5%8F%94%E6%AF%94%E6%98%AF7%EF%BC%9A9%EF%BC%9A12%2C%E7%94%B2%E4%B9%99%E4%B8%A4%E6%95%B0%E7%9A%84%E5%92%8C%E5%87%8F%E5%8E%BB%E4%B8%99%E6%95%B0%E7%9A%84%E5%B7%AE%E7%AD%89%E4%BA%8E20%2C%E6%B1%82%E8%BF%99%E4%B8%89%E4%B8%AA%E6%95%B0%EF%BC%9A%E8%AE%BE%E4%B8%BA%E4%B8%80%E5%85%83%E4%B8%80%E6%AC%A1%E6%96%B9%E7%A8%8B%E5%B9%B6%E8%AE%A1%E7%AE%97)
xKo@*RO;v\]?jmLũ&>TJ*! !HZ`D6VD\vWؙff]+T47w7{EWtD\OӇ٨>3V7z(*X!RNT %j5\"Vabb~hҥdI$qa:X]$Pٴ
q$Ͽj|`5%RW,(mx(L6ϝ'E{b{6Lbھh-!D+CiDﲛBodua_W(;N2yTG;~0Z [$Z^uF=XԲH\B 4{.#eF@p@H