Evaluate the expression for a=4, b=2, and c=8. (You will get a single number for your answer.)

Question

3a−2b +5c=

Answer 1

To evaluate the expression \( 3a - 2b + 5c \) with the given values \( a = 4 \), \( b = 2 \), and \( c = 8 \), follow these steps:

1. Substitute the values into the expression: \[ 3(4) - 2(2) + 5(8) \]

2. Calculate each term: \[ 3(4) = 12 \] \[ -2(2) = -4 \] \[ 5(8) = 40 \]

3. Now combine these results: \[ 12 - 4 + 40 \]

4. Perform the addition and subtraction: \[ 12 - 4 = 8 \] \[ 8 + 40 = 48 \]

Therefore, the value of the expression is \( \boxed{48} \).