Answer:
For the statement Q(x) = "x + 1 = 2x," the universal quantification (∀xQ(x)) asserts that the equation holds true for all values of x. To evaluate this, you would need to confirm if the equation is true for every possible x.
On the other hand, the existential quantification (∃xQ(x)) asserts that there exists at least one x for which the equation is true. To evaluate this, you need to find at least one value of x that satisfies the equation.
Can you provide more context or specify a domain for x so we can evaluate these quantifications further?