(d-295)*13=260

Question

(d-295)*13=260

Answer 1

13d-3835=260

13d=4095

d=315

Answer 2

(d-295)*13=260

13d+3835=260

13d=3835-260

13d=3575

d=3575/13

d=275

__________

Ответ:d=275