7.4x1.5+0.74x26-0.26x59

来源：学生作业帮助网编辑：作业帮时间：2024/05/06 03:51:31

7.4x1.5+0.74x26-0.26x59
7.4x1.5+0.74x26-0.26x59

7.4x1.5+0.74x26-0.26x59
7.4x1.5+0.74x26-0.26x59
=7.4x1.5+7.4x2.6-0.26x59
=7.4x(1.5+2.6)-0.26x59
=7.4x4.1-0.26x59
=30.34-15.34
=15