How do you work out 9n-2=7n+50

Write a numerical expression that satisfies all of the following conditions. 1.)the only number used in the expression is 5 2.)at least one exponent other than 1 is used 3.)when the expression is evaluated, the answer is greater than 40 and less than 50

Plot the intercepts to graph the equation

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge