Final answer:
The equivalent expression to (4x + 3) + (-2x +4) is 2x + 7, which is found by combining like terms, thus the correct answer is D. 2x + 7.
Step-by-step explanation:
The expression equivalent to (4x + 3) + (-2x +4) can be found by combining like terms. We combine the x-terms and the constant terms separately:
4x + (-2x) = 2x
3 + 4 = 7
So, the equivalent expression is 2x + 7.
Therefore, the correct answer to the question is option D. 2x + 7.