Which equation can be solved by using this system of equations?[y-3x³-7x²+5ly-7x²+2xO 3x³-7x²+5-0O 3x³-7x2+5-7x* +2xO 7x²+2x-0O 7x+3x³-7x²+2x+5=0

Step 1
Given;
Equate both equations. That is equate y to itself.
[tex]3x^3-7x^2+5=7x^4+2x[/tex]The answer
[tex]3x^3-7x^2+5=7x^4+2x[/tex]