va rog dau coroană repedeeeeeeeee

12. (21+14,4 +34,6 +x):4=29
70+x=116
x=116-70
x=46
13. (60+2x):2=47
60+2x=94
2x=34
x=17
(14+29+18+x+y):5=72
61+17+y=360
78+y=360
y=282