Question

determine,algébricamente,o zero das funçoes do 1 grau 
y=1/2x-6

Answer 1

1/2x - 6 = 0
1/2x = 6
x = 6/1/2
x = 12

Answer 2

 1/2x - 6 = 0  mmc= 2

    x - 12 =0
     x = 12