Question

Помогите пожалуйста:(​

Answer 1

Ответ:

a = 2

Объяснение:

$\displaystyle \left \{ {{6a+b=14} \atop {-b+a=0}} \right. < = > \left \{ {{6b+b=14} \atop {a=b}} \right. < = > \left \{ {{7b=14|:7} \atop {a=b}} \right. < = > \left \{ {{b=2} \atop {a=2}} \right.$

Answer 2

$\displaystyle \left \{ {{6a+b=14} \atop {-b+a=0}} \right. \\\\\left \{ {{b=14-6a} \atop {-b+a=0}} \right. \\\\-(14-6a)+a=0\\a=2\\b=14-6*2\\b=2\\(a,b)=(2,2)$