100(X - 2) + 10X + 2X = 100*2X + 10X + X - 2 - 495
问题描述：
100(X - 2) + 10X + 2X = 100*2X + 10X + X - 2 - 495
答
额。你是要怎么样的解法噢。就是把右面的带x的项移到左边,合并下就好了呀。答案是三
答
100(X - 2) + 10X + 2X = 100*2X + 10X + X - 2 - 495
100X-200+10X+2X=200X+10X+ X - 2 - 495
100X+10X+2X-200X-10X-X=- 2 - 495+200
-77X=-297
X=77/297