2(x-3)+3=6x-5 please show the steps

Negative 5 1/12 + negative 4 1/4 + 6 3/4

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters

Alex's monthly take home pay is $2,500. what is the maximum bad debt payment he can maintain without being in credit overload?