How do you complete each ordered pair (4, _) so that it is a solution to 6x - y = 7?

1 Answer
May 12, 2016

(4,color(blue)(17))

Explanation:

Let the missing value be k
so that (4,k) is a solution to the equation
color(white)("XXX")6x-y=7

Substituting (4,k) for (x,y) (i.e. 4 for x and k for y)
we get
color(white)("XXX")6*(4)-k=7

color(white)("XXX")24-y=7

color(white)("XXX") y=17