Question

{6х+9у=12
{5х+4у=17
!!!!!!!!!!!!!! ​

Answer 1

Ответ:

{6x+9y-12

{5x+4y=17

30x+45y=60

-30x-24y=-102

21y=-42

y=-2

5x+4×(-2)=17

x=5

(x,y)=(5-2)

{6×5+9×(-2)=12

{5×5+4×(-2)=17

{12=12

{17=17

Жауабы:(5;-2)