若2(x-1)与3(x+5)互为相反数 则x=?
问题描述:
若2(x-1)与3(x+5)互为相反数 则x=?
答
2(x-1)与3(x+5)互为相反数
即相加为0
2(x-1)+3(x+5)=0
5x-2+15=0
5x=-13
x=-13/5