Question

Solve a x - 12 = 9.
A. x = 21/a
B. x = - 21/a
C. x = 3/a
D. x = 3/a

Answer 1

are you positive this is correct

Answer 2

To solve the equation \( ax - 12 = 9 \), follow these steps:

1. Add 12 to both sides of the equation:
\[
ax = 9 + 12
\]
\[
ax = 21
\]

2. Divide both sides by \( a \) to solve for \( x \):
\[
x = \frac{21}{a}
\]

So the correct answer is:
**A. \( x = \frac{21}{a} \)**.

Answer 3

Yes, I'm confident that the solution is correct. Let's go through it again step by step.

You provided the equation:

\[
ax - 12 = 9
\]

1. First, add 12 to both sides to isolate the term with \( x \):
\[
ax = 9 + 12
\]
\[
ax = 21
\]

2. Next, divide both sides by \( a \) to solve for \( x \):
\[
x = \frac{21}{a}
\]

So the final answer is indeed \( x = \frac{21}{a} \). Therefore, the answer is:

**A. \( x = \frac{21}{a} \)**.

If you have any further questions or need clarification on any steps, feel free to ask!