а) z = 289 + 45 + 65z = 399
б) y = 65 + 69 - 42y = 92
в) x + 156 + 24 = 221x = 221 - 156 - 24x = 41
г) 85 + x - 76 = 254x = 254 - 85 + 76x = 245
д) x - 76 + 45 = 181x = 181 - 45 + 76x = 212
е) 133 - (x + 48) = 34
а) z = 289 + 45 + 65
z = 399
б) y = 65 + 69 - 42
y = 92
в) x + 156 + 24 = 221
x = 221 - 156 - 24
x = 41
г) 85 + x - 76 = 254
x = 254 - 85 + 76
x = 245
д) x - 76 + 45 = 181
x = 181 - 45 + 76
x = 212
е) 133 - (x + 48) = 34
(x + 48) = 34 - 133(x + 48) = -99x + 48 = 99
x = 99 - 48
x = 51