Chengdu Xiaoshengchu can use equations to solve math problems. According to the relevant public information, there are univariate linear equations to solve application problems in primary school mathematics, and binary linear equations are rarely used. Solving application problems with arithmetic accounts for a large proportion, but solving application problems with equations must be mastered. Sometimes there are equations to solve application problems on the test paper. Although there are not many, you can't lose valuable scores, and sometimes there are no restrictions on methods, so those who learn will have the advantage.