The equation $kx + 6 = 2x + 18$ is satisfied by $x = 4$ . What is the value of $k$ ?

3Correct answerYour answer5Correct answerYour answer

\frac{13}{2}

Correct answerYour answer8Correct answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer B

Correct answer: B

Worth noting

Ignoring the $2x$ term gives $4k + 6 = 18$ , i.e. 3. Forgetting to subtract the 6 gives $\frac{13}{2}$ .

Ten questions from Linear and Quadratic Equations, at your own pace.

Ten questions from Linear and Quadratic Equations, at your own pace.

The equation kx+6=2x+18kx + 6 = 2x + 18kx+6=2x+18 is satisfied by x=4x = 4x=4. What is the value of kkk?