Question

Which of the following numbers evaluates the statement −a−3b−c when a=−5, b=2, and c=−3?

A. 0
B. 15
C. 13
D. 2

Answer 1

By substituting the values −5 for a, 2 for b, and −3 for c into the expression −a−3b−c, performing the operations results in the answer 'D. 2'.

Step-by-step explanation:

To evaluate the expression −a−3b−c with given values of a, b, and c, simply substitute the numbers into the equation and perform the arithmetic operations. Given that a=−5, b=2, and c=−3, the substitution looks like this:

−(−5)−(3×2)−(−3)

This simplifies to:

5−6−(−3)

Now add the numbers:

5−6+3

Finally, the result is:

2

Therefore, the correct answer is 'D. 2'