Algebra practice question

Answer: -2 or −2

Substitute x = 2: 8 + 3k = 2, so 3k = −6 and k = −2.

Common wrong answers

If you answered 2

2 has the wrong sign.

If you answered -6

−6 is 3k, not k.

If you answered 0.67

0.67 is the y-intercept (2/3), not the value at x = 2.

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