Question

3) -2x +y - 7 = 0; пж срочно мне надо ​

Answer 1

Ответ:

2 х+y-7=0

x-y-2=0

+

2x+y - 7 + x-y-2 = 0+0

3x - 9 = 0

3x = 9

x = 3

3-y-2=0

-y + 1 = 0

-y = - 1

y = 1