Question

Using the following image solve for x

Answer 1

x = -3

Explanation:

x + 10 + x + 4 = 8

2x + 14 = 8

2x = -6

x = -3

Check:

2x + 14 = 8

2(-3) + 14 =8

-6 + 14 = 8

8 = 8

Answer 2

• 
  `\sf x=-3`

Explanation:

CD + DB = CB

CD = x +10

CB = 8

`\sf (x+10)+(x+4)=8`

`\sf x+10+x+4=8`

Combine like terms.

• 
  `\sf x+x+10+4=8`

• 
  `\sf 2x+14=8`

Subtract 14 from both sides.

• 
  `\sf 2x+14-14=8-14`

• 
  `\sf 2x=-6`

Divide both sides by 2.

• 
  `\sf \cfrac{2x}{2}=\cfrac{-6}{2}`

• 
  `\sf x=-3`

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