1) 204 – (– х + 72) = 13
204 + x - 72 = 13
x = 13 + 72 - 204
x = -119
2) (138 – у) + 42 = – 27
138 - y + 42 = - 27
y = 138 + 42 + 27
y = 207
1) 204 – (– х + 72) = 13
204 + x - 72 = 13
x = 13 + 72 - 204
x = -119
2) (138 – у) + 42 = – 27
138 - y + 42 = - 27
y = 138 + 42 + 27
y = 207