Question

Реши уравнения.
58-20+с=40
с-(20+9)=60

Answer 1

1)58-20+с=40
38 + c = 40
c = 40 - 38
c = 2

2)с-(20+9)=60
c - 29 = 60
c = 60 + 29
c = 89

Answer 2

58-20=38
38+2=40

20+9=29
60+29=89
89-29=60