A figure displays two nonadjacent angles with measures 3x° and (4x+1)°. If the angles are complementary, what is the simplified equation corresponding to the measures of the angles?

A. (7x+1)°=180°
B. (7x+1)°=90°
C. (1x+1)°=180°
D. (1x+1)°=90°

Since the angles are complementary, their measures add up to 90°. Therefore, the equation is:

3x° + (4x+1)° = 90°

Simplifying this equation gives:

7x + 1 = 90

Thus, the simplified equation corresponding to the measures of the angles is:

(7x+1)° = 90°

So, the correct answer is option B.