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一次方程(组)和一元一次不等式(组)都是初一代数的重要内容,它们之间可以相互转化,也就是说有时可把一次方程(组)问题转化为不等式(组)来求解；有时又可把不等式(组)问题转化为一次方程(组)来求解．下面分类举例说明．
The first-order equations (groups) and unary first-order inequalities (groups) are the important contents of the first-generation numbers, and they can be transformed into each other, which means that the equation (group) problem can sometimes be transformed into an inequality (group) to solve; sometimes The inequality (group) problem can also be converted into an equation (group) to solve. The following classification examples illustrate.