Question

Прошу!!!пж (69,71)!!!!!!!

Answer 1

69.

12*(-1)-5y=23

-12-5y=23

5y= 23+(-12)= 23-12=11

5y=11

y=11/5=2,2

71.

2y+7x=-3

2y+7=-3

2y=-3-7

y=-10/2

y=-5

Answer 2

69. -12-5у=23

5у=-35

у=-7

71. 2у+7=-3

2у=-10

у=-5