What is equalvient to 3x+3(5x-18)=108

An equivalent to 3x+3(5x-18)=108 would be 3x + 15x - 54 = 108, after multiplication on 3(5x-18).  This, in turn, would be 18x = 162, whose solution is 9.

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation: