Question

solve X in the given pair of equations using substitution method 2 X + Y equal to 3 and X + 3 Y equal to 1

Answer 1

2x+y=3     - 1equ

x+3y=1      -2equ

so, y=3-2x from 1equ put in 2 equ

then, x+3-2x=1

        3-x=1

         x=2 put in 1 equ

therefore,   2*2+y=3

                 4+y =3

                     y=-1

hence. x=2 and y=-1