Алгебра: Решите систему уравнений 3х+2у=8 2х+6у =10

Решите задачу:

$\left \{ {{3x+2y=8} \atop {2x+6y =10}} \right.$
$\left \{ {{3x+2y=8} \atop {2(x+3y) =10}} \right.$
$\left \{ {{3x+2y=8} \atop {x+3y =5}} \right.$
$\left \{ {{3x+2y=8} \atop {x =5 - 3y}} \right.$
$\left \{ {{3(5 - 3y) + 2y=8} \atop {x =5 - 3y}} \right.$
$\left \{ {{15 - 9y + 2y=8} \atop {x =5 - 3y}} \right.$
$\left \{ {{15 - 7y =8} \atop {x =5 - 3y}} \right.$
$\left \{ {{7y =7} \atop {x =5 - 3y}} \right.$
$\left \{ {{y =1} \atop {x =2}} \right.$