解方程:a=38.857-60x-15y-63z 2800x+70y+70z=1540 70x+4.86y+z=80.143 70x+y+28z=62
问题描述:
解方程:a=38.857-60x-15y-63z 2800x+70y+70z=1540 70x+4.86y+z=80.143 70x+y+28z=62
a,x,y,z,都是未知数,解这个四元一次方程!都应该能解出值来!
答
a=-258.22793987049028677150786308973
x=0.17532500770891150169596053037311
y=13.700323774283071230342275670675
z=1.2866759173604687018193031144002