substitute the values of a, b, and c into the equation: 2x - 3a + b/c = 0.
When we do that, we get: 2x - 3(10) + 9/4 = 0.
Simplifying further: 2x - 30 + 2.25 = 0.
Combining like terms: 2x - 27.75 = 0.
To solve for x, we isolate the x term: 2x = 27.75.
Finally, divide both sides by 2: x = 13.875.
So, the value of x is approximately 13.875.