Question

помогите срочно!!!!!!​

Answer 1

Ответ:

1:

а) ( x, y) = (2, - 1)

b) ( x, y) = (-1, 4)

2:

a) ( x, y) = (3, 1)

b) ( x, y) = (-5, - 11)

Объяснение:

1:

a) 3 (5+3y) + 2y = 4

y=-1

x=5+3×(-1)

x=2

b) 2x-5(1-3x)=-22

x=-1

y=1-3×(-1)

y=4

2:

a) 4(4-y)-5y=7

y=1

x=4-1

x=3

b) 5(6+y)-2y=-3

y=-11

x=6-11

x=-5