Prove or disprove

If a/b - 2c and a/2b + 3c then a/b and a/c

I do not understand this.

I think it's a divisibility problem, where she meant

If a|(b-2c) and a|(2b+3c) the a|b and a|c.

To prove or disprove the relationship between a/b, a/2b, and a/c, we need to determine whether there exists a relationship between these quantities.

First, let's assume that a, b, and c are non-zero real numbers.
If a/b = 2c and a/2b = -3c, we can rearrange the equations to isolate a:

a = 2bc (Equation 1)
a = -6bc (Equation 2)

By equating the right sides of these two equations, we can conclude that 2bc = -6bc, which implies that 2 = -6. However, this is not true, indicating that our initial assumption must be incorrect. Hence, there is no defined relationship between a/b, a/2b, and a/c.

Therefore, the claim is disproven on the basis of a counterexample using equations 1 and 2.