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One number is equal to two times a second number. Two times the
first number plus two times the second number is 24. If you let x stand
for the first number and y for the second, what are the two numbers?

Answer :

first number = x
second number = y = 2x
2(x) * 2(2x) = 24
2x*4x = 24
8x^2 = 24
x^2 = 4
x = 2
First number = 2
Second number = 4

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