Question

3x + 2y=8
6x - 14y =6
решите систему уравнений

Answer 1

{3х+2у=8 |*(-2)
{6х-14у=6

{-6х-4у=-16
{6х-14у=6
___________
-18у=-10
у= 10/18=5/9

$6x - frac{14}{1} times frac{5}{9} = 6 \ 6x - frac{70}{9} = 6 \ 6x = 13 frac{7}{9} \ x = frac{124}{9} times frac{1}{6} \ x = frac{62}{27} \ x = 2 frac{8}{27} : :$


Ответ: (2 8/27; 5/9)