0.03-3x/0.03-6.5=3[5-2x]/0.05-5.5
问题描述:
0.03-3x/0.03-6.5=3[5-2x]/0.05-5.5
答
0.03-100x-6.5=(15-6x)/0.05-5.5
0.03-100x-6.5=(15-6x)*20-5.5
0.03-100x-6.5=300-120x-5.5
120x-100x=300-5.5-0.03+6.5
20x=300.97
x=300.97/20
x=15.0495