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Since 2, 8, a, and b are integers, so is 2x+8y for x=a and y=b. Furthermore, 2x+8y is divisible by 2 for any integer choice of x,y
Since 2, 8, a, and b are integers, so is 2x+8y for x=a and y=b. Furthermore, 2x+8y is divisible by 8 for any integer choice of x,y
Since 2, 8, a, and b are integers, so is 2x+8y for x=a and y=b. However, we cannot say anything about the divisibility of 2x+8y for integer choices of x,y
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