一元一次方程
[词典] [数] linear equation with one unknown;
[例句]由于该法对安全系数K是直接求解一个一元一次方程而得到，故计算精度也高于其它各法所得结果的精度。
Since safety K is obtained by solving directly a linear equation according to the method, the calculation precision is also higher than using other methods.