Question

Tìm x
n) 8x - 16( x - 5)=0

Answer 1

8x -16(x-5)=0

8x-16x+80=0

8x - 16x=0-80

x.(8-16)=-80

x.(-8)=-80

x=-80:(-8)

x=10

Vậy x=10

Answer 2

8x - 16x + 80 = 0

-8x = -80 

x = 10