7×13×(8/7-14/13)简便怎么算?4x-1/5x=1.9解方程
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/10 04:25:55
![7×13×(8/7-14/13)简便怎么算?4x-1/5x=1.9解方程](/uploads/image/z/446719-31-9.jpg?t=7%C3%9713%C3%97%EF%BC%888%2F7-14%2F13%29%E7%AE%80%E4%BE%BF%E6%80%8E%E4%B9%88%E7%AE%97%3F4x-1%2F5x%3D1.9%E8%A7%A3%E6%96%B9%E7%A8%8B)
x1
0hi6)$,z ) 88]zn^ S)\T.)QTZ/ec ,On{LǴ,a=֎
Ig
E-`Y('"D5(>{C1_N5RfĀ]xj_;.aag!8`(=Q 7{
7×13×(8/7-14/13)简便怎么算?4x-1/5x=1.9解方程
7×13×(8/7-14/13)简便怎么算?4x-1/5x=1.9解方程
7×13×(8/7-14/13)简便怎么算?4x-1/5x=1.9解方程
7×13×(8/7-14/13)
=13×8-14×7
=104-98
=6
4x-1/5x=1.9
3.8x=1.9
x=0.5
7×13×(8/7-14/13)
=7×8/7*13-13×14/13*7
=8*13-14*7
=104-98
=6
4x-1/5x=1.9
20x-x=9.5
19x=9005
x=0.5
7×13×(8/7-14/13)
=13×8-14×7
=104-98
=6
4x-1/5x=1.9
3.8x=1.9
x=0.5
=7x13x8/7-7x13x14/13
=8x13-14x7
=2x(4x13-7x7)
=2x3
=6