The description “16+4x is 10 more than 14” can be written as the equation 16+4x=10+14, which is equivalent to 16+4x=24. Subtracting 16 from each side of 16+4x=24 gives 4x=8. Since 8x is 2 times 4x, multiplying both sides of 4x=8 by 2 gives 8x=16. Therefore, the value of 8x is 16. Choice A is incorrect because it is the value of x, not 8x. Choices B and D are incorrect; those choices may be a result of errors in rewriting 16+4x=10+14. For example, choice D could be the result of subtracting 16 from the left side of the equation and adding 16 to the right side of 16+4x=10+14, giving 4x=40 and 8x=80