Algebra practice question

Answer: 14

Distribute: 5x − 10 − 3x = 18 → 2x − 10 = 18 → 2x = 28 → x = 14.

Common wrong answers

If you answered 4

4 comes from 2x − 10 = 18 solved as 2x = 8, subtracting 10 instead of adding it.

If you answered 8

8 comes from distributing the 5 to only the x: 5x − 2 − 3x = 18 gives 2x = 16.

If you answered 28

28 is 2x, before dividing by 2.

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