3m+n+6=24,求6m+2n的值

问题描述:

3m+n+6=24,求6m+2n的值

3m+n=24-6=18
6m+2n=18*2=36

3m+n+6=24
3m+n=18
6m+2n=36

18

3m+n+6=24
3m+n=24-6=18
2(3m+n)=6m+2n=36

由3m+n+6=24可得:3m+n=18.所以6m+2n=2*(3m+n)=2*18=36