Most of U.S. electricity generation is from electric power plants that use a turbine or similar machine to drive electricity generators. A turbine converts the potential and kinetic energy of a moving fluid (liquid or gas) to mechanical energy.
Which means.. the equation is 8x-23+7x-7=90 Combine like terms you should get 15x-30=90 Add 30 on both sides 15x=120 Divide 15 x=8 Plug in 8 to (8x-23) 8(8)=64-23=41 m
