How do you rewrite this equation so that y is a function of x 2x plus y equals 7?

y=f(x)= x(2x+y)=7

f(x)=2x^2 +xy -7 = 0

y=2x^2 +xy -7

y-xy -7 + 2x^2 = 0

y(1-x)=2x^2-7

y=(2x^2-7) / (1-x)

Excuse the working.

Y equals 2 X squared minus 7 all divided by 1-X