(1900 - к)- 279= 1276

Question

(1900 - к)- 279= 1276

Answer 1

1900-к=1276+279
1900-к=1555
к=1900-1555
к=1345

Comments

Почему 1345

Answer 2

(1900-k)=1276+279
(1900-k)=1555
k=1900-1555
k=345