Three unknown numbers

The sum of of three numbers is 106. the first number is 10 more then the third. The second number is 2x the third. What are the numbers?

a =  34
b =  48
c =  24

Step-by-step explanation:

a+b+c=106
a=10+c
b=2•c

a+b+c = 106
a-c = 10
b-2c = 0

a = 34
b = 48
c = 24

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