Evaluate the given expression.

Question

-12.3-(-9.6)+10.5+(-10.5)

A.
21.9
B.
-21.9
C.
-2.7
D.
2.7

Answer 1

To evaluate the expression \(-12.3 - (-9.6) + 10.5 + (-10.5)\), we can start by simplifying the expression step by step.

1. Simplify \(-(-9.6)\) to \(+9.6\):

\[ -12.3 + 9.6 + 10.5 - 10.5 \]

2. Combine the terms:

Now, let's combine \(-12.3\) and \(9.6\):

\[ -12.3 + 9.6 = -2.7 \]

So now we have:

\[ -2.7 + 10.5 - 10.5 \]

3. Next, combine \(10.5\) and \(-10.5\):

\[ 10.5 - 10.5 = 0 \]

This simplifies our expression to:

\[ -2.7 + 0 = -2.7 \]

Thus, the value of the expression is:

\[ \boxed{-2.7} \]

The correct answer is C. -2.7.