【2000乘x+1000乘(3.24%-x)】乘0.8=43.92写清每一步
问题描述:
【2000乘x+1000乘(3.24%-x)】乘0.8=43.92写清每一步
答
2000x+1000*(3.24%-x)=43.92/0.8
2000x+1000*(3.24%-x)=54.9
2000x-1000x+32.4=54.9
1000x=22.5
x=0.0225