Gwyneth begins solving for x in the equation 2(x-4)=5(4-2x)+4x after the distributive property which equation will help her sovle x

7. the area of the playing surface at the olympic stadium in beijing isof a hectare. what area will it occupy on a plan drawn to a scaleof 1: 500?

Can someone me out here number 4 plz

Acyclist bike x distance at 10 miles per hour .and returns over the same path at 8 miles per hour.what is the cyclist average rate for the round trip in miles per hour ?