7.3.负3.7怎样算成24?
问题描述：
7.3.负3.7怎样算成24?
答
7*(3-(-3)/7)=247*(3-((-3)/7))=247*(3/7-(-3))=247*((3/7)-(-3))=24(3/7-(-3))*7=24((3/7)-(-3))*7=24(3-(-3)/7)*7=24(3-((-3)/7))*7=24(3-(-3)/7)*7=24(3-((-3)/7))*7=24(3/7-(-3))*7=24((3/7)-(-3))*7=247*(3/7-(-3))=247*((3/7)-(-3))=247*(3-(-3)/7)=247*(3-((-3)/7))=24