Question

{8x-9y-21=0
{3x-2y-12=0

Answer 1

8х-9у-21=0
-2у=-3х+12
8х-9у-21=0
у=1.5х-6
8х-9(1.5-6)-21=08x-13.5x+54-21=0-5.5x=-33x=6 y=8*6-9y-21=048
-9y-21=0-9y=-27
y=3 
Ответ:3,6