Question

a+a+a=30,a+b+b=20,b+c+c=9,b+c+a=?​

Answer 1

a=10

b=5

c=2

we but these values :

• a+a+a=30

10+10+10=30

• a+b+b=20

10+5+5=20

• b+c+c=9

5+2+2=9

• b+c+a=17

5+2+20=17

I think it's hope full for you

Answer 2

first find a

a+a+a=30

3a=30

then a=30/3

a=10

then find b

a+b+b=20

10+2b=20

2b=20-10

b=10/2

b=5

then find c with help of 3rd equation

b+c+c=9

5+2c=9

2c=9-5

c=4/2

c=2

find :- a+b+c

10+5+2=17

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