3(x+1)+1/3(x-1)=2(x-1)+1/2(x+1)大神们帮帮忙
问题描述:
3(x+1)+1/3(x-1)=2(x-1)+1/2(x+1)大神们帮帮忙
答
两边乘以6得:18(X+1)+2(X-1)=12(X-1)+3(X+1) 所以有:15(X+1)=10(X-1) 即:3X+3=2X-1 解之得:X=-4
3(x+1)+1/3(x-1)=2(x-1)+1/2(x+1)大神们帮帮忙
两边乘以6得:18(X+1)+2(X-1)=12(X-1)+3(X+1) 所以有:15(X+1)=10(X-1) 即:3X+3=2X-1 解之得:X=-4