Nine fewer than half a number is five more than four times the number

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.

There is an entrance to the computer room at point e which lies on ab and is 5 feet from point a. plot point e on the coordinate plane. find the distance from the entrance at point e to the printer at point e

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x