Question

СРОЧНО ПОМОГИТЕ ПЛИЗ
1426 и еще это 2 ×-у-7=0
5х-3у-1=0​

Answer 1

$4x + 3 y- 5 = 0 \ x - y - 3 = 0 \ \ 4x + 3(x - 3) - 5 = 0 \ y = x - 3 \ \ 4x + 3(x - 3) - 5 = 0 \ 4x + 3x - 9 - 5 = 0 \ 7x = 14 \ x = 14 div 7 \ x = 2 \ \ y = x - 3 \ y = 2 - 3 \ y = - 1 \ \ otvet : (2 : ; : - 1)$

$2x - y - 7 = 0 : | times ( - 3) \ 5x - 3y - 1 = 0 \ \ - 6x + 3y + 21 = 0 \ 5x - 3y - 1 = 0 \ \ - x + 20 = 0 \ - x = - 20 \ x = 20 \ \ 2x - y - 7 = 0 \ 2 times 20 - y - 7 = 0 \ 40 - y - 7 = 0 \ 33 - y = 0 \ y = 33 \ \ otvet : (20 : ; : 33)$