To solve this problem, let's use the alternate interior angles converse to form the following.
The converse we are using allows us to write the following equation.
28x=16x+4828x=16x+48
Now, subtract 16x from both sides.
\begin{gathered}\begin{gathered} 28x-16x=16x-16x+48 \\ 12x=48 \end{gathered}\end{gathered}
28x−16x=16x−16x+48
12x=48
Then, divide both sides by 12.
\begin{gathered}\begin{gathered} \frac{12x}{12}=\frac{48}{12} \\ x=4 \end{gathered}\end{gathered}
12
12x
=
12
48
x=4
Therefore, the value of x is 4, and the converse used is alternate interior angles