Algebra practice question

Answer: 2

Substitute: 12 − 3c = 6, so 3c = 6 and c = 2.

Common wrong answers

If you answered 6

6 comes from setting 12 − 3c = −6.

If you answered -2

−2 comes from 12 + 3c = 6, missing the sign of −3.

If you answered -6

−6 comes from a double sign error.

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