60*0.8+1.2x=(60+x)*0.88 细节一定要写!细写

问题描述:

60*0.8+1.2x=(60+x)*0.88
细节一定要写!细写

60*0.8+1.2x=(60+x)*0.88
48+1.2x=60*0.88+0.88x
1.2x-0.88x=52.8-48
0.24x=4.8
x=4.8÷0.24
x=20

60*0.8+1.2x=(60+x)*0.88
48+1.2x=60*0.88+0.88x
1.2x-0.88x=52.8-48
0.24x=4.8
x=4.8÷0.24
x=20

60*0.8+1.2x=(60+x)*0.88
48+1.2x=52.8+0.88x
0.32x=4.8
x=15
上面的错了吧?
验算下 --汗,2L直接抄了