fie ecuatia x+3=mx+1, unde x €N*. Determinati m pentru care ecuatia are solutia 1/2

Răspuns :

x+3=mx+1
1/2+3=1/2•m+1
1+6/2=m+2/2
Se renunta la numitor ==> 1+6=m+2
7=m+2
m=5