Răspuns :
2)m+n=10
n+p=100|•2
m+3n+2p=?
2n+2p=200
m+n+2p+2n=210
m+3n+2p=210
Ex 1) am uitat cum se face scz
1) ab+ba=77
10a+b+10b+a=77
11a+11b=77
11*(a+b)=77
a+b=77:11
a+b=7
2) m+n=10
n+p=100 I *2
m+n=10
2n+2p=200(+)
m+n+2n+2p=10+200
m+3n+2p=210
10a+b+10b+a=77
11a+11b=77
11*(a+b)=77
a+b=77:11
a+b=7
2) m+n=10
n+p=100 I *2
m+n=10
2n+2p=200(+)
m+n+2n+2p=10+200
m+3n+2p=210