论文部分内容阅读
1 单元知识网络2 要点剖析2.1 等式的性质(1)等式的两边都加上(或减去)同一个数或同一个整式,所得结果仍是等式.(2)等式的两边都乘以(或除以)同一个数(除数
1 Elemental Knowledge Network 2 Essentials Analysis 2.1 The nature of the equation (1) Add (or subtract) the same number or the same integer to both sides of the equation. The result is still the equation. (2) Both sides of the equation are Multiply (or divide by) the same number (divisor)