To use the elimination method to eliminate the y variable from the system of equations
- \(2x + 4y = 16\)
- \(2x - 4y = 0\)
the first step is to add both equations together, as this will allow you to eliminate the \(y\) variable since they have coefficients of \(4y\) and \(-4y\) that will cancel each other out.
So, the correct first step is:
Add the equations together.
This gives you:
\((2x + 4y) + (2x - 4y) = 16 + 0\)
Which simplifies to:
\(4x = 16\)
From here, you can solve for \(x\) and then substitute back to find \(y\).