Question

69 минус игрек минус 28 равно 13

Answer 1

69-(у-28)=13
69-у+28=13
-у=13-28-69
-у=-84
у=84
69-(84-28)=13

Answer 2

69-у+28=13

Answer 3

-у=13-28-69

Answer 4

-у=-84

Answer 5

у=84

Answer 6

69-(84-28)=13

Answer 7

69-у-28=13
у=69-28-13
у=28