Question

Tìm số tự nhiên x, biết rằng 135 – 2x = 5

Answer 1

135 – 2x = 5

          2x = 135-5

          2x = 130 : 2

            x = 65

Answer 2

\(2x=135-5=130\\ x=130:2=65\)

Answer 3

\(135-2x=5\)

\(\Rightarrow2x=135-5\)

\(\Rightarrow2x=130\)

\(\Rightarrow x=130:2=65\)

Answer 4

\(135-2x=5.\Leftrightarrow2x=130.\Leftrightarrow x=65.\)

Answer 5

135 – 2x = 5

          2x = 135-5

          2x = 130 : 2

            x = 65