Question

Evaluate the expression for a=4, b=2, and c=8. (You will get a single number for your answer.)
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 \( \boxed{48} \).