Respuesta :

gavi94

Answer

Step-by-step explanation:

4 • (x - 3) -  20  = 0

Pull out like factors :

  4x - 32  =   4 • (x - 8)

Equation at the end of step

3

:

 4 • (x - 8)  = 0

solve :    4   =  0

Answer:

x = 8

Step-by-step explanation:

4(x-3)=20

divide both sides by 4 : [tex]\frac{4(x-3)}{4} = \frac{20}{4}[/tex]

simplify : x - 3 =5

add 3 to both sides

x - 3 + 3 = 5 + 3

Simplify : x = 8