13.56x+10.16y+6.82z=1o.7 8.7x+43y+15.7z=11.1 x+y+z=87.25
问题描述:
13.56x+10.16y+6.82z=1o.7 8.7x+43y+15.7z=11.1 x+y+z=87.25
答
x=-187.114, y=-97.748, z=372.112
用mathematica这个软件解方程最简单.