我们学习数学的目的是高效快捷地解决实际生活中遇到的问题.那么本章学习的一元一次方程可以解决哪些实际问题呢?我们还是来看看教科书第109页的数学活动吧!教科书在活动2中给出了一个通过动手操作,运用一元一次方程探究规律的问题,根据生活常识易知:当支点位于木杆的中点处,两端各挂一个等质量重物时,木杆是平衡的.若木杆右端挂一个重物,左边挂两个重物(挂 The purpose of our study of mathematics is to solve problems in real life efficiently and expeditiously.What are the practical problems that can be solved by the unitary equation studied in this chapter? Let’s take a look at the mathematical activities of the textbook on page 109! Gives a question of exploring the law through hands-on operation and applying a unitary equation to understand the law. According to common sense of life, when the fulcrum is at the midpoint of the wood and the hanging weights are equal at both ends, the wood is balanced If the wooden rod hangs a heavy object on the right, hang two heavy objects on the left