摘要：<正>We can find the solution to the equation a+5=8 in a more systematic way than just guessing. In trying to solve the equation, we are actually trying to find the value of a. We need to have a on its own on the LHS."a+5=8""a=?"Therefore, we can summarize the steps as follows:

注：因版权方要求，不能公开全文，如需全文，请咨询杂志社