x-(0.15x+20)+370=1.2x 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:2024/06/24 00:10:09
x-(0.15x+20)+370=1.2x 怎么解
![x-(0.15x+20)+370=1.2x 怎么解](/uploads/image/z/18912859-43-9.jpg?t=x-%280.15x%2B20%29%2B370%3D1.2x+%E6%80%8E%E4%B9%88%E8%A7%A3)
x-(0.15x+20)+370=1.2x
x - 0.15x - 20 + 370 = 1.2x
x - 0.15x + 350 = 1.2x
350 = 1.2x - x + 0.15x
350 = 0.35x
x = 350/0.35
x = 1000
x - 0.15x - 20 + 370 = 1.2x
x - 0.15x + 350 = 1.2x
350 = 1.2x - x + 0.15x
350 = 0.35x
x = 350/0.35
x = 1000