Răspunsuri

2014-02-14T13:56:48+02:00
A+b+c=173
a-25=b-17=c-26
a=b-17+25      deci a= b+8
c-26=b-17
c=b-17+26  deci c=b+9
b+8+b+b+9=173
3b+17=173
b=52, a=60, c=61
2014-02-14T13:58:07+02:00
A-25=b-17
a-b=25-17
a-b=8
a=8+b

a-25=c-26
1=c-a

c-26=b-17
c-b=9
c=9+b

a+b+c=173
8+b+b+9+b=173
3×b=173-17
3×b=156
b=156÷3
b=52

a=8+b
a=8+52
a=60

c=9+b
c=9+52
c=61

verif: a+b+c=60+52+61=173 (A)
a-25=b-17=c-26
60-25=52-17=61-26
35=35=35 (A)