Question

(2,8 . x - 32) : 2/3 = -90

Answer 1

(2,8 . x - 32) : 2/3 = -90

(2,8 . x - 32) = -90 x 2/3

(2,8 . x - 32) = -60

2,8 . x = -60 + 32

2,8 . x = -28

x = -28 : 2,8

x = -10

Answer 2

`(2,8 . x - 32) : 2/3 = -90`

`(2,8 . x - 32) = -90 xx (-2/3)`

`2,8 . x = 60 + 32`

`2,8 . x = 92`

`x = 92 : 2,8`

`x = 92/2,8`

Answer 3

\(\left(2,8\cdot x-32\right):\dfrac{2}{3}=-90\)

\(\left(\dfrac{14}{5}\cdot x-32\right):\dfrac{2}{3}=-90\)

\(\dfrac{14}{5}\cdot x-32=\left(-90\right)\cdot\dfrac{2}{3}\)

\(\dfrac{14}{5}\cdot x-32=-60\)

\(\dfrac{14}{5}\cdot x=\left(-60\right)+32\)

\(\dfrac{14}{5}\cdot x=-28\)

        \(x=\left(-28\right):\dfrac{14}{5}\)

        \(x=\left(-28\right)\cdot\dfrac{5}{14}\)

        \(x=-10\)

Answer 4

2 , 8 . x − 32 ) : 2 3 = − 90 ( 2 , 8 . x − 32 ) = − 90 × ( − 2 3 ) 2 , 8 . x = 60 + 32 2 , 8 . x = 92 x = 92 : 2 , 8 x = TỰ TÍNH

Answer 5

(2,8 . x - 32) : 2/3 = -90

(2,8 . x - 32) = -90 x 2/3

(2,8 . x - 32) = -60

2,8 . x = -60 + 32

2,8 . x = -28

x = -28 : 2,8

x = -10