Question

даю много баллов!!!!!!!!!!!!!​

Answer 1

Ответ:

a = 5 - 3 × 2 = 5 - 6 = - 1

b = 2 × 5 + 4 × 2 = 10 + 8 = 18

Answer 2

$\left \{ {{x-3y=a} \atop {2x+4y=b}} \right.\\\\\left \{ {{5-3*2=a} \atop {2*5+4*2=b}} \right.\\\\\left \{ {{5-6=a} \atop {10+8=b}} \right.\\\\\left \{ {{a=-1} \atop {b=18}} \right.\\\\Otvet:\boxed{a=-1;b=18}$