Răspunsuri

  • Utilizator Brainly
2014-10-04T12:23:10+03:00
A+b=28
b+c=16
c+a=20  adunam cele trei relatii si rezulta :
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2+2b+2c=64 /:2 => a+b+c=32

a+b+c=32
28+c=32
c=32-28
c=4

a+16=32
a=32-16
a=16

20+b=32
b=12
14 4 14
2014-10-04T12:24:06+03:00
A+b=28
b+c=16
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a+c+2b=28+16
20+2b=44
2b=24
b=12      a=16  c=4