Question: How do I plot F(x,y) when there's a relation between x and y

I have a function F(x,y), for example, F=x+y,and a relation between x and y,which we denote it by G(x,y)=0, and x can not be solved explicitly, For example, G(x,y)= x^5+x^4*y+x^3*y+2*x^2*y^2+x*y^5+y^5-1. and I want to plot F(x,y) with respect to y, where x satisfy G(x,y)=0, How can I do this?

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