Question

41 - ( 2 nhân x - 5 ) = 3 mũ 2

Answer 1

`41 - (2.x - 5) = 3^2`

`41 - (2.x - 5) = 9`

`2.x-5=41-9`

`2.x-5=32`

`2.x=32+5`

`2.x=37`

`x=37:2`

`x=18,5`

Answer 2

\(41-\left(2x-5\right)=3^2=9\)

=> 2x - 5 = 41 - 9 = 32

=> 2x = 32 + 5 = 37

=> x = 37/2

Answer 3

`41-(2x -5) = 3^2`

`<=> 2x-5 = 41 -3^2 =41-9`

`<=> 2x-5 =32`

`<=> 2x = 32+5=37`

`=> x=37/2`

Answer 4

`41 - (2x - 5) = 3^2`

`=> 41 - (2x - 5) = 9`

`=>         2x - 5  = 41 - 9`

`=>         2x - 5  = 32`

`=>         2x       = 32+ 5`

`=>        2x        = 37`

`=>          x       = 37 : 2`

`=>          x        = 37/2 hay 18,5`

Answer 5