Question

the value of y varies directly with x and the constant of variation is 7. what is the value of x when y=63???

Answer 1

y varies directly with x, so y = k*x for some fixed number k

Answer 2

we are told that the constant of variation is 7, so k = 7

Answer 3

we want to find the value of x when y = 63, so,

y = k*x

y = 7*x

63 = 7*x

solve for x