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a+b=10 b+c=20 a+c=24 So a+b+c = ?

Guest Aug 2, 2015

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 #2
avatar+18712 
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(a+b)+(b+c)+(a+c)=2(a+b+c)=10+20+24=54

a+b+c=54/2=27

heureka  Aug 2, 2015
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 #1
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+5

Difference between c and a -> 20-10=10

a-> (24-10)รท2=7

c-> 10+7=17

b-> 10-7=3

a+b+c-> 7+3+17=27

Guest Aug 2, 2015
 #2
avatar+18712 
+8
Best Answer

(a+b)+(b+c)+(a+c)=2(a+b+c)=10+20+24=54

a+b+c=54/2=27

heureka  Aug 2, 2015

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