Question

x + 3y = 5
-x + 6y = 4

Answer 1

I x+ 3y = 5
II -x +6y = 4
if we multply the I with (-2) we will get -2x -6y =-10;
we sum the two equations ;
-2x-6y = -10;
-x +6y = 4
-3x = -6
x = 2 and y = 1;

Answer 2

wow ur smart!

Answer 3

you could have added them as they are

then 9y=9

Answer 4

yes zzr0ck3r you have easy way ; to solve