Question
Subtract.
(
–
5a+8)–(
–
4a–7)
(
–
5a+8)–(
–
4a–7)
Answers
There are no human answers yet.
Answered by
GPT-4o mini
To subtract the expressions \((-5a + 8)\) and \((-4a - 7)\), you can rewrite the expression like this:
\[
(-5a + 8) - (-4a - 7)
\]
Next, distribute the negative sign across the second expression:
\[
-5a + 8 + 4a + 7
\]
Now, combine like terms:
1. Combine the \(a\) terms: \(-5a + 4a = -a\)
2. Combine the constant terms: \(8 + 7 = 15\)
Putting it all together, the expression simplifies to:
\[
-a + 15
\]
So, the final result is:
\[
-a + 15
\]
\[
(-5a + 8) - (-4a - 7)
\]
Next, distribute the negative sign across the second expression:
\[
-5a + 8 + 4a + 7
\]
Now, combine like terms:
1. Combine the \(a\) terms: \(-5a + 4a = -a\)
2. Combine the constant terms: \(8 + 7 = 15\)
Putting it all together, the expression simplifies to:
\[
-a + 15
\]
So, the final result is:
\[
-a + 15
\]
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