Question

D
الا
3x+3
4x+2
Determine the value of mZDCB.

Answer 1

`▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪`

The given Angles (4x + 2) and (3x + 3) are forming linear pair, so

• 
  `4x + 2 + 3x + 3 = 180`

• 
  `7x + 5 = 180`

• 
  `7x = 180 - 5`

• 
  `7x = 175`

• 
  `x = (175)/(7)`

• 
  `x = 25`

now, let's find Angle DCB :

• 
  `3x + 3`

• 
  `(3 * 25) + 3`

• 
  `75 + 3`

• 
  `78 \degree`