九年义务教育初中代数第一册(上)第201页归纳出解一元一次方程的五个步骤.较简单的方程按照这些步骤求解已经足够.但是有些特殊的方程,或者系数比较复杂,或者方程中包含的项数较多.或者括号的层次较多,解这些方程则不能机械地套用五个步骤,而应根据 The nine-year compulsory education junior high school algebra (Volume One) (page 201) summarizes the five steps for solving the one-dimensional first-order equation. The simpler equation for solving these steps is already sufficient, but there are some special equations, or the coefficients are more complex, or the equations The number of items contained in it is larger, or the level of brackets is more, and solving these equations cannot be applied mechanically to the five steps but should be based on