What does 3(7x-5y)-2(4y-x+1) equal

3(7x−5y)−2(4y−x+1)

Distribute:

=(3)(7x)+(3)(−5y)+(−2)(4y)+(−2)(−x)+(−2)(1)

=21x+−15y+−8y+2x+−2

Combine Like Terms:

=21x+−15y+−8y+2x+−2

=(21x+2x)+(−15y+−8y)+(−2)

=23x+−23y+−2

=23x−23y−2

Step-by-step explanation:

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:

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step-by-step explanation: