text: how do you solve this type of equation   x+(0.04*x)=320,  and also y-(y*0.04)=57 ??? i am trying to figure out how much starting hp and mp my rpg character starts out with if i were to take off his equipment (which i cant because its fixed). with the equipment on his starting hp is 320 and mp is 57, the equipment gives -4% hp and +4% mp, whats his starting hp and mp with the equipment off??? x+(0.04*x)=320 1.04x = 320 x = 320/1.04 = 307.69  y-(y*0.04)=57 0.96y = 57 y=59.375