Question

What matches with the equation 31 - 9x = 4 ?
(x = 3)
{3}
(3)
{x = 3}

Answer 1

To solve the equation \( 31 - 9x = 4 \):

1. Start by isolating the term with \( x \):
\[
31 - 9x = 4
\]
Subtract 31 from both sides:
\[
-9x = 4 - 31
\]
\[
-9x = -27
\]

2. Now, divide both sides by -9:
\[
x = \frac{-27}{-9} = 3
\]

So, the solution to the equation is \( x = 3 \).

From the options provided:
- \( (x = 3) \)
- \( \{3\} \)
- \( (3) \)
- \( \{x = 3\} \)

The correct matches with the solution \( x = 3 \) are:
- \( (x = 3) \)
- \( \{x = 3\} \)
- \( \{3\} \)
- \( (3) \)

All of the options contain the solution \( x = 3 \) in some format.