Răspuns :
4(m+n)-72=48
4(m+n)=48+72
4(m+n)=120
m+n=30
m=6n +2=> 6n+2+n=30 =>7n=30-2 =>7n=28 =>n=4
=>m=26
4(m+n)=48+72
4(m+n)=120
m+n=30
m=6n +2=> 6n+2+n=30 =>7n=30-2 =>7n=28 =>n=4
=>m=26