for what value of k does kx + 7y = 10 have a slope of 3? im really confused!!!

Answer 1

Rewrite the equation in the form
y = -(k/7)x + 10/7

You want the slope (-k/7) to be 3

-k/7 = 3

k = ?

Answer 2

-k/7=3
-k=21
k=-21