“数”与“形”是数学殿堂里密不可分的两大柱石,“数缺形时少直观、形缺数时难入微”。若某些代数问题有明显几何意义,则转化为几何图形,适当地运用几何方法,以“形”研究“数”,会使问题直观形象,解法简捷灵活。现结合实例说明:1.在数轴上以“形”解“数”例1.解方程｜x+1｜+ “Number” and “Form” are the two pillars that are inseparable from the mathematical palace. “When the number is missing, it is less intuitive, and when the number is missing, it is difficult to understand.” If some algebraic problems have obvious geometrical meanings, they will be transformed into geometric shapes. The proper use of geometric methods and the study of “numbers” with “shapes” will make the problems intuitive and easy to solve. Now combine the examples to illustrate: 1. Solve “number” on the number axis with “shape” Example 1. Solution equation |x+1|+