Question

у + (4 275 – 3 209) = 11 845

Answer 1

y+(4275-3209)=11845
y+1066=11845
y=11845-1066
y=10779

Answer 2

у+(4.275-3.209)=11.845;
у+1.066=11.845;
у=11.845-1.066;
у=10.779.
10.779+(4.275-3.209)=11.845.
11.845=11.845.
Ответ:10.779

Answer 3

Как то так)