For this case we can write the system of equations as two equations with two unknowns.
We then define the following unknowns:
incognitas: x and y.
We write the system of equations:
y = x2 + 3x + 1
y = 2x2 + 2x + 3
Answer:
y = x2 + 3x + 1
y = 2x2 + 2x + 3
