12*2+12*p+29p-9*p-9*1
24+12p+29p-9p-9
12p+29p-9p+24-9
решаем:
12*1/4+29*1/4-9*1/4+24-9
1/4*(12+29-9)+24-9
1/4*32+24-9
8+24-9
ответ:23
15+8*1/4=15+2=17
12*2+12*p+29p-9*p-9*1
24+12p+29p-9p-9
12p+29p-9p+24-9
решаем:
12*1/4+29*1/4-9*1/4+24-9
1/4*(12+29-9)+24-9
1/4*32+24-9
8+24-9
ответ:23