3x+2y+2z=302,5x+3y+3z=508求x+y+z的值快
问题描述:
3x+2y+2z=302,5x+3y+3z=508求x+y+z的值
快
答
3X+2Y+2Z=302
6X+4Y+4Z=604
X+Y+Z=96