When solving a system of linear equations, a student correctly simplifies the problem to the statement $-3 = -3$. What can be concluded about the number of solutions for this system?

The system has exactly one solution.

The system has infinitely many solutions.

A mistake was made in the calculation.

To solve the system $\begin{cases} 4x - 3y = 8 \\ 2x + y = 14 \end{cases}$ using elimination, you decide to eliminate the variable $y$. What is the first step you should take?

Add the two equations together as they are.

Multiply the first equation by 2.

Multiply the second equation by 3.

Multiply the second equation by -1.