Friday, September 6, 2013

The sum of two numbers is 78. The second number is 14 more than 3 times the first number. Find the two numbers.

x+y=78
y=3x+14 


so...
x+3x+14=78
4x+14=78
4x=64
x=16 

therefore...
y=78-16
y=62

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