Răspuns:
c = 7
Explicație pas cu pas:
100-[50-(38-5xc)x8-2]:3+4=96
100-[50-(38-5xc)x8-2]:3=96-4
100-[50-(38-5xc)x8-2]:3=92
[50-(38-5xc)x8-2]:3=100-92
[50-(38-5xc)x8-2]:3=8
50-(38-5xc)x8-2= 8×3
50-(38-5xc)x8-2=24
50-(38-5xc)x8=24+2
50-(38-5xc)x8=26
(38-5xc)x8=50-26
(38-5xc)x8=24
38-5xc=24:8
38-5×c=3
5×c=38-3
5×c=35
c=35:5
c=7
