Question

(7x - 2 mũ 2) :5 =2

Answer 1

`(7x-2^2):5=2`

`=>7x-4=2.5`

`=>7x=10+4`

`=>x=14:7`

`=>x=2`

Answer 2

`(7x - 2^2) :5 =2`

`=> (7x - 4): 5 =2`

`=> 7x - 4= 2 xx 5`

`=> 7x - 4= 10`

`=>7x=10+4`

`=>7x=14`

`=>x=14:7`

`=>x=2`

Answer 3

(7x - 2²) : 5 = 2

7x - 4 = 2 . 5

7x - 4 = 10

7x = 10 + 4

7x = 14

x = 14 : 7

x = 2