Consider the augmented matrix (11∣211∣3)\begin{pmatrix} 1 & 1 & | & 2 \\ 1 & 1 & | & 3 \end{pmatrix}(1111∣∣23). What is the solution set?
x=1,y=1x=1, y=1x=1,y=1
Infinitely many solutions
No solution
x=0,y=0x=0, y=0x=0,y=0