68*x+35*(x-0.5)=446
问题描述:
68*x+35*(x-0.5)=446
答
68*x+35x=463.5
103*x=463.5
x=4.5
68*x+35*(x-0.5)=446
68*x+35x=463.5
103*x=463.5
x=4.5