Question

thực hiện phép tính

\(135-5\left(x+4\right)\)

Answer 1

135 - 5 (x+4)

135 - 5x + 20

=> 5x =135 - 20

     5x = 115

       x = 115:5

       x = 23

Answer 2

135 - 5 ( x + 4 )

= 135 - 5x + 20

=> 5x = 135 - 20

5x = 115

x = 115 : 5

x = 23

Answer 3

\(135-5\left(x+4\right)\)

\(135-5x+20\)

\(5x=135-20\)

=> \(x=\left(135-20\right)\div5\)

\(x=115\div5\)

\(x=23\)