What is the solution of the equation −x/2.9=−3?

A. -87
B. 8.7
C. 87
D. -8.7

To solve the equation, we need to isolate the variable x.

Multiply both sides of the equation by -2.9 to eliminate the fraction:

(-2.9)(-x/2.9) = (-2.9)(-3)

This simplifies to:

x = 8.7

The solution to the equation is x = 8.7.

Therefore, the correct answer is B. 8.7.