(x-7)/(x-24)=7方程怎么解?快
问题描述:
(x-7)/(x-24)=7方程怎么解?
快
答
x-7=7(x-24)
x-7=7x-168
x=161/6
答
(x-7)/(x-24)=7
x-7=7(x-24)=7x-168
7x-x=168-7=161
6x=161
x=161/6
答
(x-7)/(x-24)=7
展开
7*(x-24)=x-7
分别相乘
7x-168=x-7
移位
7x-x=-7+168
6x=161
x=161/6
答
动动脑筋.
答
展开
x-7=7(x-24)
x-7=7x-168
6x=161
x=161/6