if im using algebra and have an equation like, find the value of x when; x = 8 4 do i say x=8x4 x=32 because x 4 i a divition and when movin

if im using algebra and have an equation like, find the value of x when; x = x over 4, do i say x=8x4 x=32 because x over 4 is a divition and when moving it across i change it to multiply or do i keep it to divide such as; x=8/4 x=2??? please help me :s