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  • Utilizator Brainly
2014-08-25T17:56:49+03:00
a+b+c=216
a=3*(b+c)
c=20+b
a=3*(b+20+b)=3*(2b+20)=6*(b+10)
6*(b+10)+b+20+b=216
6b+60+b+20+b=216
8b+80=216
8b=136
b=17
c=37
a=6*27=162

2014-08-25T17:58:17+03:00
A+b+c=216

a=3(b+c)= 3b+3c

c-20=b

a=3(c-20)+3c

a=3c-60+3c

a=6c-60

6c-60 +c-20+c=216

8c -80=216

8c= 296

c=37

b=37-20=17

a=37*6 -60=  222-60= 162
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