Question

Evaluate the expression 3B-ac when a=-2 b=3 and c=0.5

Answer 1

To evaluate the expression \(3B - ac\) with the given values \(a = -2\), \(b = 3\), and \(c = 0.5\), we first substitute these values into the expression.

1. Substitute the values into the expression:
\[
3B - ac = 3(3) - (-2)(0.5)
\]

2. Calculate \(3B\):
\[
3(3) = 9
\]

3. Calculate \(-ac\):
\[
-(-2)(0.5) = 2(0.5) = 1
\]

4. Now combine the results:
\[
9 + 1 = 10
\]

Thus, the value of the expression \(3B - ac\) when \(a = -2\), \(b = 3\), and \(c = 0.5\) is \( \boxed{10} \).