(5-x)*3=(7-x)*2 x*(1-0.2)=145-x+8 x*6+x(1+0.1)*5=1518 9+x =(36+x)*0.4
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/23 17:01:34
![(5-x)*3=(7-x)*2 x*(1-0.2)=145-x+8 x*6+x(1+0.1)*5=1518 9+x =(36+x)*0.4](/uploads/image/z/1107136-64-6.jpg?t=%285-x%29%2A3%3D%287-x%29%2A2+x%2A%EF%BC%881-0.2%EF%BC%89%3D145-x%2B8+x%2A6%2Bx%EF%BC%881%2B0.1%EF%BC%89%2A5%3D1518+9%2Bx+%3D%2836%2Bx%29%2A0.4)
(5-x)*3=(7-x)*2 x*(1-0.2)=145-x+8 x*6+x(1+0.1)*5=1518 9+x =(36+x)*0.4
(5-x)*3=(7-x)*2 x*(1-0.2)=145-x+8 x*6+x(1+0.1)*5=1518 9+x =(36+x)*0.4
(5-x)*3=(7-x)*2 x*(1-0.2)=145-x+8 x*6+x(1+0.1)*5=1518 9+x =(36+x)*0.4
(5-x)*3=(7-x)*2
15-3x=14-2x
x=-1