(12+x) - 129 = 409: (у - 37) + 21 = 69: (x + 6275) + 1231 = 9177.

Question

(12+x) - 129 = 409:

(у - 37) + 21 = 69:

(x + 6275) + 1231 = 9177.

Comments

Пжжжж помогите

Answer 1

1)
(12+х)-129=409
12+х=409-129
12+х=280
х=280-12
х=268