0.4x+0.9/0.5-0.03+0.02x/0.03=x-5/2
问题描述:
0.4x+0.9/0.5-0.03+0.02x/0.03=x-5/2
"\"是分数线
答
0.4x+0.9/0.5-0.03+0.02x/0.03=x-5/2
0.8x+1.8-1-2/3x=0.5x-2.5
11/30x=3.3
x=9