Advanced Math practice question

Answer: 3

Substitute y = 2x: (x + 2x)/x = 3x/x = 3.

Common wrong answers

If you answered 2

2 is y/x alone, leaving out the x in the numerator.

If you answered 1.5

1.5 is (x + y)/y, dividing by the wrong variable.

If you answered 3x

3x forgets to divide by x; the x's cancel.

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