а)у-29=48
у=48+29
у=77
б)27+x=75
x=75-27
х=48
в)73-(45+z)=18
73 – 45 – z = 18
– z = 18 + 45 – 73
-z = -10
z = 10
г)(x-723)+409=518
x – 723 + 409 = 518
x = 518 – 409 + 723
x = 832
а)у-29=48
у=48+29
у=77
б)27+x=75
x=75-27
х=48
в)73-(45+z)=18
73 – 45 – z = 18
– z = 18 + 45 – 73
-z = -10
z = 10
г)(x-723)+409=518
x – 723 + 409 = 518
x = 518 – 409 + 723
x = 832