Advanced Math practice question

Answer: 0

Multiply both sides by (x − 3): x = 2(x − 3) + 6 = 2x. So x = 0. Check: 0/(−3) = 0 and 2 + 6/(−3) = 0.

Common wrong answers

If you answered 3

3 makes the denominators zero and is not allowed.

If you answered 6

6 comes from x = 2x − 6, dropping the +6 on the right.

If you answered -6

−6 comes from x = 2x + 6 + 6 with a sign error.

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