#include <bits/stdc++.h>
#define db double
using namespace std;
int main ()
{
    int n;

    cin >>n;


    while (n--)
    {
        cin >>a>>b;

    db ma ,mi;

   ma= max (a,b);
   mi = min (a,b);

   db x = ma - mi ;

   if (x*2==mi)
    cout <<"yes"<<endl;
   else
    cout<<"no"<<endl;

    }
    return 0;
}