Please help me with solving with system using addition method

Question

2x-3y=11,-4x+3y=-19

Answer 1

 2x  -3y  =  11          [eq1]

-4x +3y = -19           [eq2]

-----------------          [add equations]

-2x        =  -8             [so, x=4 ]

 2x  -3y  =  11          [eq1 again]

-----------------         [add equations]

       -3y  =   3          [so, y= -1 ]       

Answer 2

2x-3y=11

-4x+3y=-19

add

-2x=-8

x=-8/(-2)

x=4

substitute

2*4-3y=11

8-3y=11

-3y=11-8

-3y=3

y=3/(-3)

y=-1

(4,-1)