Question

Помогите пжжпжпжпж пожалуйста ​

Answer 1

$\displaystyle \left \{ {{y+14x=2} \atop {3y-14x=4}} \right.\\ \\\left \{ {{14x=2-y} \atop {3y-14x=4}} \right. \\\\3y-(2-y)=4\\\\y=\frac{3}{2}=1,5$