Evaluate the expression 3b-ac

Question

a=-2
b=3
c=0.5

Answer 1

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

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

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

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

4. Combine these results: \[ 9 + 1 = 10 \]

Thus, the value of the expression \( 3b - ac \) is \( \boxed{10} \).