数学题在线解答已知2/3A+4/+/4B+3/=-/C+1/求A-B+C的相反数的值
问题描述：
数学题在线解答已知2/3A+4/+/4B+3/=-/C+1/求A-B+C的相反数的值
答
2/3A+4/+/4B+3/=-/C+1/2/3A+4/+/4B+3/+/C+1/=02/3A+4/=0/3A+4/=03A+4=0A=-4/3/4B+3/=0B=-3/4/C+1/=0C=-1A-B+C=-4/3-(3/4)+(-1)=-3/4-4/3-1=-9/12-16/12-12/12=-37/25A-B+C的相反数为：37/25