来自金信苗的问题
x1+x2+x3+x4+x5=74x1+2x2+3x3+2x4-2x5=5x1+3x2+2x3+3x4+7x5=30求这方程组的通解并指出它的一个特解x1+x2+x3+x4+x5=74x1+2x2+3x3+2x4-2x5=5x1+3x2+2x3+3x4+7x5=30
x1+x2+x3+x4+x5=74x1+2x2+3x3+2x4-2x5=5x1+3x2+2x3+3x4+7x5=30
求这方程组的通解并指出它的一个特解
x1+x2+x3+x4+x5=7
4x1+2x2+3x3+2x4-2x5=5
x1+3x2+2x3+3x4+7x5=30
