Question

1) tìm x 5(x - 7) = 0

Answer 1

\(5\left(x-7\right)=0\\ \Rightarrow x-7=0:5\\ \Rightarrow x-7=0\\ \Rightarrow x=0+7\\ \Rightarrow x=7\)

Answer 2

5 ( x - 7 ) = 0

      x - 7   = 0 : 5

      x - 7 = 0

      x      = 0 + 7

      x      = 7

Answer 3

5(x−7)=0⇒x−7=0:5⇒x−7=0⇒x=0+7⇒x=7

Answer 4

5 ( x - 7 ) = 0

      x - 7   = 0 : 5

      x - 7 = 0

      x      = 0 + 7

      x      = 7