sistem.pas

This ar the basic programs that i did in highschool. From very simple to medium programs. From array

program sistem;
{                                 a*x + b*y = m
rezolvarea unui sistem de forma :
                                  c*x + d*y = n }
var a,b,c,d,m,n:integer;
    x,y:real;
begin
write('a= ');
readln(a);
write('b= ');
readln(b);
write('c= ');
readln(c);
write('d= ');
readln(d);
write('m= ');
readln(m);
write('n= ');
readln(n);
writeln('Sistemul als este : ',a,'*x + ',b,'*y = ',m);
writeln('                    ',c,'*x + ',d,'*y = ',n);
if (a*d-b*c=0) then writeln('Sistemul ales nu are solutii')
               else
               begin
               x:=(m*d-b*n)/(a*d-b*c);
               y:=(a*n-c*m)/(a*d-b*c);
               writeln('Sistemul ales are solutiile x= ',x:4:1,' si y= ',y:4:1);
               end;
end.