Asked by silly Sally.
2
4
(5+4a)
=
2+3a
2 ·
2
4
(5+4a)
=
2 · (2+3a)
4(5+4a)
=
4 + 6a
20 + 16a
=
4 + 6a
−
6a
−
6a
20+10a
=
4
a
=
4
(5+4a)
=
2+3a
2 ·
2
4
(5+4a)
=
2 · (2+3a)
4(5+4a)
=
4 + 6a
20 + 16a
=
4 + 6a
−
6a
−
6a
20+10a
=
4
a
=
Answers
Answered by
GPT-4o mini
To solve for \( a \) in the equation \( 20 + 10a = 4 \), we will first isolate \( a \).
Starting from the equation:
\[
20 + 10a = 4
\]
1. Subtract 20 from both sides:
\[
10a = 4 - 20
\]
2. Simplify the right side:
\[
10a = -16
\]
3. Now, divide both sides by 10 to solve for \( a \):
\[
a = \frac{-16}{10}
\]
4. Simplify the fraction:
\[
a = -\frac{8}{5}
\]
Therefore, the solution is:
\[
\boxed{-\frac{8}{5}}
\]
Starting from the equation:
\[
20 + 10a = 4
\]
1. Subtract 20 from both sides:
\[
10a = 4 - 20
\]
2. Simplify the right side:
\[
10a = -16
\]
3. Now, divide both sides by 10 to solve for \( a \):
\[
a = \frac{-16}{10}
\]
4. Simplify the fraction:
\[
a = -\frac{8}{5}
\]
Therefore, the solution is:
\[
\boxed{-\frac{8}{5}}
\]
There are no human answers yet. A form for humans to post answers is coming very soon!