Помогите пожалуйста!

Решите задачу:

$\left \{ {{4x - y = 11} \atop {6x - 2y = 13}} \right.$

$\left \{ {{y = 4x - 11} \atop {6x - 2(4x - 11) = 13}} \right.$

$\left \{ {{y = 4x - 11} \atop {6x - 8x + 22 = 13}} \right.$

$\left \{ {{y = 4x - 11} \atop {-2x = -9}} \right.$

$\left \{ {{y = 4x - 11} \atop {x = 4.5}} \right.$

$\left \{ {{y = 18 - 11} \atop {x = 4.5}} \right.$

$\left \{ {x = 4.5} \atop {y = 7}} \right.$