Question

afla numerele necunoscute
x:15=17 reste 7
169:a=24 rest 1
286:b=15 rest 1
a:7=143 rest 6

ax16=224
12xa=300az7=756
24xa=744

Answer 1

x:15=17 rest 7 
x=17x15+7
x=255+7
x=262

169:a=24 rest 1
169=24xa+1
24a=169-1
24a=168
a=168:24
a=7

286:b=15 rest 1
286=15xb+1
15xb=286-1
15xb=285
b=285:15
b=19

a:7=143 rest 6 
a=143x7+6
a=1001+6
a=1007

ax16=224
a=224:16
a=14

12xa=300
a=300:12
a=25

ax7=756 (cred) tu ai pus z
a=756:7
a=108

24xa=744
a=744:24
a=31