Question

800-y=153+277

a-187=329-145

Answer 1

y = 370; a = 371

Пошаговое объяснение:

1. (800 - y = 153 + 277):

[800 - y = 430]

[y = 800 - 430]

[y = 370]

2. (a - 187 = 329 - 145):

[a - 187 = 184]

[a = 184 + 187]

[a = 371]