Examples of Math Problems
examples of math problems that I like, solved, etc.
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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