Question

2 ( 2x +5 ) - 4 = 16

Answer 1

`2(2x+5)-4=16`

`=>2(2x-5)=20`

`=>2x-5=10`

`=>2x=15`

`=>x=15/2`

Answer 2

`=> 4x + 10 - 4 = 16`

`=> 4x + 6 = 16`

`=> 4x = 10`

`=> x = 5/2`

Answer 3

`2(2x+5)-4=16`

`=>2(2x-5)=16+4`

`=>2(2x-5)=20`

`=>2x-5=10`

`=>2x=10+5`

`=>2x=15`

`=>x=15:2`

`=>x=7,5`

Answer 4

2 ( 2 x + 5 ) − 4 = 16

⇒ 2 ( 2 x − 5 ) = 20

⇒ 2 x − 5 = 10

⇒ 2 x = 15

⇒ x = 15 /2