Answer:
The system becomes,
y = x + 4
and y = 3x +12
Explanation:
Given: x + 4 = 3x + 12
We have to set up the given equation as a system of equations.
Given equation x + 4 = 3x + 12 has two sides
left side x + 4 and right side 3x + 12
To set up a system of equation put the given Left side and right side equal to some equal variable say y.
Thus, the system becomes,
y = x + 4
and y = 3x +12