2t+(t-1)/0.2=(3-2t)/0.4+2
问题描述:
2t+(t-1)/0.2=(3-2t)/0.4+2
答
2t+(t-1)/0.2=(3-2t)/0.4+2
2t+5(t-1)=5(3-2t)/2+2
2t+5t-5=15/2-5t+2
7t-5=15/2-5t+2
12t=5+2+15/2
12t=29/2
t=29/24谢谢啊