由于解一元一次不等式与一元一次方程的五个步骤相似，所以在解一元一次不等式时也容易出现解一元一次方程时容易犯的错误。比如，为了去分母而在不等式的两边都乘以各分母的最小公倍数时，容易忘记将分子作为一个整体加上抬号，漏乘一些项，或漏乘没有分母的项；去括号时，当 Since solving a one-time inequality is similar to the five steps of the one-ary-one-time equation, it is also prone to errors that are easy to make when solving a one-dimensional equation when solving a one-time inequality. For example, in order to denominator and multiply on both sides of the inequality by the least common multiple of the denominator, it is easy to forget to add the numerator as a whole plus an item, to miss some items, or to miss items without a denominator; when the parentheses are used,