Question

Which ordered pair is a solution of the given system of equations
{x+2y=6
{x-y=3

Answer 1

x+2y=6 now subtract the other equation from this...
-x+y=-3 gives you

3y=3, so y =1, making x+2y=6 become:

x+2(1)=6

x+2=6, so x=4

The solution is the point (4,1)

Answer 2

The pair (4,1) is the solution.