Respuesta :

Step-by-step explanation:

(ab/4) +bc = 12 -xc

multiply both sides by 4

ab + 4bc = 48 - 4xc

Transfer -4xc to the other side

ab + 4xc + 4 bc = 48

Transfer ab to the other side

4xc + 4bc = 48 - ab

take c as a common factor

c( 4x - 4b) = 48 - ab

divide both sides by ( 4x - 4b)

c ( 4x - 4b)/( 4x - 4b) = (48- ab)/( 4x - 4b)

c = ( 48-ab)/( 4x - 4b)