x−2y= −16
7x−12y=7
x=2y−16
7(2y−16 ) −12y= 14у- 112-12у= 7
2у -112=7
2у= 119
у= 59,5
х= 2*59,5 - 16 =103
x−2y= −16
7x−12y=7
x=2y−16
7(2y−16 ) −12y= 14у- 112-12у= 7
2у -112=7
2у= 119
у= 59,5
х= 2*59,5 - 16 =103