Advanced MathEasyDoubling an expression with a known value
Advanced Math practice question
If 3x = 12, what is the value of 6x?
Answer: 24
6x is twice 3x: 2 × 12 = 24.
Common wrong answers
- If you answered 4
- 4 is x, not 6x.
- If you answered 12
- 12 is 3x.
- If you answered 72
- 72 is 6 × 12.
More Advanced Math questions
- Easy
If f(x) = 3x − 7, what is the value of f(5)? - Easy
What are the solutions to x² − 9 = 0? - Easy
Which of the following expressions is equivalent to x² + 7x + 12 ? - Easy
The function g is defined by g(x) = x³ + 2x. What is the value of g(−2) ? - Easy
For x > 0, which of the following is equivalent to ∛(x⁵) ? - Easy
The function h is defined by h(x) = (x − 6)(x + 2). What is one value of x for which h(x) = 0 ?
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