28\x+30\z+35\y=4.5 28\y+30\z+35\x=4.3 x+y+z=142 帮我解.马上!
问题描述:
28\x+30\z+35\y=4.5 28\y+30\z+35\x=4.3 x+y+z=142 帮我解.马上!
那个4.3改为4.7
答
x=42,y=30,z=70
28\x+30\z+35\y=4.5 28\y+30\z+35\x=4.3 x+y+z=142 帮我解.马上!
那个4.3改为4.7
x=42,y=30,z=70