0.3x+(1000-x)(-0.5)=260这个方程怎么解?
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/11 06:14:45
0.3x+(1000-x)(-0.5)=260这个方程怎么解?
![0.3x+(1000-x)(-0.5)=260这个方程怎么解?](/uploads/image/z/7600360-40-0.jpg?t=0.3x%2B%281000-x%29%28-0.5%29%3D260%E8%BF%99%E4%B8%AA%E6%96%B9%E7%A8%8B%E6%80%8E%E4%B9%88%E8%A7%A3%3F)
0.3x+(1000-x)(-0.5)=260
0.3x+(-200)+0.5x=260
0.3x+0.5x=460
0.8x=460
x=575
0.3x+(-200)+0.5x=260
0.3x+0.5x=460
0.8x=460
x=575