8(x+2)-6x=21 Whats the Value Of x?

Answer 1

8(x + 2) - 6x = 21

8x + 16 - 6x = 21

2x + 16 = 21

2x + 16 - 16 = 21 - 16

2x = 5

2x/2 = 5/2

x = 5/2

x = 2 1/2

x = 2.5

The answer is x = 2.5

Insert the x value into the equation

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Check

8(x + 2) - 6x = 21

8(2.5 + 2) - 6(2.5) = 21

8(4.5) - 15 = 21

36 - 15 = 21

21 = 21

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Answer 2

Its a really simple linear equation
8(x + 2) - 6x=21
= 8x + 16 - 6x = 21 [Since a(b + c) = ab + ac]
= 8x - 6x = 21 - 16 (Club like terms and +16 becomes -16 since the terms change when a number is shifted)
= 2x = 5
= 2 * x = 5
= x = 5 / 2
= x = 2.5

Answer 3

X= 5/2

Answer 4

Basically you need to multiply first
8(x+2)-6x=21
Then you get this equation
8x+16-6x=21
put the number on 1 side and the algebra on the other,
2x=5
Therefore
x=2.5

Answer 5

8(x + 2) - 6x = 21
8x + 16 - 6x = 21
2x + 16 = 21
2x + 16 - 16 = 21 - 16
2x = 5
2x/2 = 5/2
x = 5/2
x = 2 1/2
x = 2.5

The answer is x = 2.5
Insert the x value into the equation
- - - - - - - - - - - - - - - - - - - - - - - -
Check
8(x + 2) - 6x = 21
8(2.5 + 2) - 6(2.5) = 21
8(4.5) - 15 = 21
36 - 15 = 21
21 = 21

Answer 6

Well, first, expand out the brackets to get 8x+16-6x=21.
Then take 6x from 8x to get 2x+16=21.
Take 16 from both sides of the equation to get 2x=5.
Finally, divide 5 by 2 to get the answer of x=2.5.

Answer 7

8(x+2)-6x=21
8x + 16 - 6x = 21
2x + 16 = 21
2x = 21 - 16 = 5
x = 5/2 = 2.5 (two and a half)

Answer 8

8x +16 -6x = 21
2x = 5
x =2.5

Answer 9

8(x+2)-6x=21 (Expand or multiply out of the brackets)
8x+16-6x=21 (-16 both sides)
8x-6x= 21-16 ( Collect like terms)
2x= 5 (divide by 2 on both sides)
x=2.5

Answer 10

8(x+2)-6x=21
8x+16-6x=21
-6x -6x

2x+16=21
-16 -16

2x=5
x=5/2
x=2.5

therefore x is 2.5